1999 GMC Jimmy Exhaust Mufflers

Keep Your 1999 GMC Jimmy in Top Shape with Quality Exhaust Mufflers

Whether you’re repairing or upgrading your Exhaust Muffler, using high-quality parts is key to keeping your 1999 GMC Jimmy looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Mufflers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Exhaust Mufflers from Trusted Brands

Looking for a reliable Exhaust Muffler? We’ve got you covered with options from brands you know and trust like Walker. For example, Walker Exhaust Mufflers start at just $78.99 with an average 4.2 star rating. With over 52 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Jimmy owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1999 GMC Jimmy Exhaust Muffler at Advance Auto Parts is around $145.12, with a range that starts at $64.99 and goes up to $211.99. With 10 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (ID), SoundFX Muffler, Universal/ Fabrication Needed, and Ultra Flo Exhaust Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval start at just $87.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Exhaust Muffler, don’t forget to check out other key components like Catalytic Converters and Exhaust Manifold and Headers. At Advance Auto Parts, we’re here to help you keep your 1999 GMC Jimmy in peak condition, inside and out.

Essential 1999 GMC Jimmy Exhaust Mufflers

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD) (Part No.21910)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

from

$96.99
Product Features:
  • CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
See More

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.21364)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$192.99
Product Features:
  • CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
See More

Walker – SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD) (Part No.18274)

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)

from

$72.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

BRExhaust – Exhaust Muffler (Part No.101-1193)

Exhaust Muffler

from

$58.99
This BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.
See More

Walker – Sound Solution Exhaust Muffler (Part No.18649)

Sound Solution Exhaust Muffler

from

$64.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
See More

Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.8042543)

40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$132.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More

Walker – Quiet-Flow SS Exhaust Muffler (Part No.21194)

Quiet-Flow SS Exhaust Muffler

from

$156.99
Walker is the only aftermarket exhaust manufacturer in North America with the capability to combine industry-leading coverage with a direct fit OE-style replacement, 100% structural stainless steel muffler, which provides over three times the average lifespan of competitors aluminized replacement mufflers. Walker Quiet-FlowSS is available for a vast majority of top-selling domestic And foreign-nameplate applications. In addition to Walker’s renowned precision fit, superior flow, And OE-style sound, these mufflers feature 409 stainless steel heads, shell, bushings, louvered tubes And partitions. Walker Quiet-FlowSS mufflers have a limited warranty and limited Safe and Sound guarantee.

Product Features:
  • 100% structural stainless steel construction
  • OE-style louvered tube technology lowers noise level for premium OE-style sound compared to straight perforated tubes
  • Precise OE-style routing & hanger positions for quick & easy installation
  • Comprehensive internal drainage system for corrosion resistance
  • OE-style domed heads help reduce radiated noise compared to flat heads
  • Spun-locked heads to help prevent rupture
See More

Walker – SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.18191)

SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

from

$83.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Flowmaster Inc. – Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842543)

Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$164.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More

Walker – Sound Solution Exhaust Muffler (Part No.18763)

Sound Solution Exhaust Muffler

from

$78.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
See More

Walker – SoundFX Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID) (Part No.18229)

SoundFX Direct Fit Exhaust Muffler 3" Inlet (ID) 3" Outlet (ID)

from

$91.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

BRExhaust – Exhaust Muffler (Part No.101-1170)

Exhaust Muffler

from

$58.99
This BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.
See More

BRExhaust – Exhaust Muffler Assembly (Part No.100-5324)

Exhaust Muffler Assembly

from

$204.99
This BRExhaust muffler assembly is constructed by one of the leading aftermarket suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no modifications required. The component is designed to offer corrosion protection in addition to optimal noise reduction and low backpressure. Built from 16-gauge steel tubing and fully aluminized, these mufflers feature an OE-style direct fit configuration compatible with your import or domestic vehicle-while the interior design of the muffler box ensures quiet performance.
See More

Flowmaster Inc. – Delta 40 Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.8430402)

Delta 40 Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound

from

$166.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.21195)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$201.99
Product Features:
  • CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
See More

Flowmaster Inc. – 40 Series Muffler, 3in Center Inlet 3in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.80430402)

40 Series Muffler, 3in Center Inlet 3in Dual Offset Outlet, Non-Reversible, Aggressive Sound

from

$132.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More

Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.17831)

SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

from

$86.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)

40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$99.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.18107)

SoundFX Muffler, Universal/ Fabrication Needed

from

$139.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
See More

Flowmaster Inc. – 40 Series Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.430402)

40 Series Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound

from

$99.99
The original Flowmaster series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Flowmaster Inc. – 50 Series Muffler, 3in Offset Inlet 3in Center Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.53056)

50 Series Muffler, 3in Offset Inlet 3in Center Outlet, 17in long, Non-Reversible, Moderate Sound

from

$199.99
The Super 50 series muffler is a larger version of Flowmaster’s 50 series Delta Flow muffler. Originally designed for trucks and SUV’s, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Walker – SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.18451)

SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$119.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Walker – Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD) (Part No.21784)

Quiet-Flow Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2" Outlet (OD)

from

$62.99
Product Features:
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
  • RESISTS CORROSION – Internal drainage system helps reduce moisture collection
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
See More

BRExhaust – Exhaust Muffler (Part No.101-1202)

Exhaust Muffler

from

$76.99
This BRExhaust replacement exhaust is engineered based on the original OEM design to ensure reliability, durability and performance. The ease of installation will save you time and effort, getting you back out on the road sooner. Each muffler features thicker hangers for added strength and fully welded, perforated tubes to guarantee a long service life.
See More

Flowmaster Inc. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.8042443)

40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Aggressive Sound

from

$132.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More

Dynomax – Ultra Flo Exhaust Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval (Part No.17289)

Ultra Flo Exhaust Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval

from

$204.99
DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.

Product Features:
  • Stainless steel construction for lifelong protection
  • Polished finish for a show quality shine
  • Dyno proven to flow up to 2,000 SCFM and support up to 1,900 horsepower
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
See More

Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Center Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.943041)

40 Series Muffler, 3in Offset Inlet 3in Center Outlet, 13in long, Non-Reversible, Aggressive Sound

from

$149.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.52558)

50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$199.99
The Super 50 series muffler is a larger version of Flowmaster’s 50 series Delta Flow muffler. Originally designed for trucks and SUV’s, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Most Popular Mufflers for 1999 GMC Jimmies

Enhance your 1999 GMC Jimmy with one of the 10 Mufflers we have in stock, starting at just $64.99.

Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.21195)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$201.99
Product Features:
  • CORROSION RESISTANT STAINLESS STEEL – The only broad-market muffler body with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and welding
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL – OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED – Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE – Comes with Walker’s limited warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.
See More

Walker – SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.18451)

SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$119.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Walker – Sound Solution Exhaust Muffler (Part No.18763)

Sound Solution Exhaust Muffler

from

$78.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
See More

Walker – SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID) (Part No.18461)

SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID)

from

$95.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX direct-fit mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION – Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST – Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • EASY TO INSTALL – Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn’t require specialized fabrication and welding
  • FACTORY SOUND – Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER – Designed and tested to extend muffler life
See More

Walker – Quiet-Flow SS Exhaust Muffler (Part No.21194)

Quiet-Flow SS Exhaust Muffler

from

$156.99
Walker is the only aftermarket exhaust manufacturer in North America with the capability to combine industry-leading coverage with a direct fit OE-style replacement, 100% structural stainless steel muffler, which provides over three times the average lifespan of competitors aluminized replacement mufflers. Walker Quiet-FlowSS is available for a vast majority of top-selling domestic And foreign-nameplate applications. In addition to Walker’s renowned precision fit, superior flow, And OE-style sound, these mufflers feature 409 stainless steel heads, shell, bushings, louvered tubes And partitions. Walker Quiet-FlowSS mufflers have a limited warranty and limited Safe and Sound guarantee.

Product Features:
  • 100% structural stainless steel construction
  • OE-style louvered tube technology lowers noise level for premium OE-style sound compared to straight perforated tubes
  • Precise OE-style routing & hanger positions for quick & easy installation
  • Comprehensive internal drainage system for corrosion resistance
  • OE-style domed heads help reduce radiated noise compared to flat heads
  • Spun-locked heads to help prevent rupture
See More

Walker – Sound Solution Exhaust Muffler (Part No.18649)

Sound Solution Exhaust Muffler

from

$64.99
Sound Solution mufflers are engineered with 100% aluminized steel for longer service life compared to low carbon steel. These mufflers have mechanical interior joints for durability, And spun-locked heads for resistance to rupture from backfires. Sound Solution mufflers are available in a universal fitment style, with both quality appearance And favorable acoustics.
See More

Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (ID) (Part No.18112)

SoundFX Universal  Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (ID)

from

$87.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
See More

Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.18107)

SoundFX Muffler, Universal/ Fabrication Needed

from

$139.99
Featuring 100% aluminized steel for longer service life compared to low-carbon steel, Walker SoundFX universal mufflers deliver quality appearance and favorable acoustics while mechanical interior joints and spun-locked heads provide durability.

Product Features:
  • RESISTS CORROSION — Aluminized steel construction and internal drainage system helps reduce corrosion
  • BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • FACTORY SOUND — Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes
  • GET MORE MILES FROM YOUR MUFFLER — Designed and tested to extend muffler life
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Dynomax – Ultra Flo Exhaust Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval (Part No.17289)

Ultra Flo Exhaust Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval

from

$204.99
DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.

Product Features:
  • Stainless steel construction for lifelong protection
  • Polished finish for a show quality shine
  • Dyno proven to flow up to 2,000 SCFM and support up to 1,900 horsepower
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
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BRExhaust – Exhaust Muffler Assembly (Part No.100-5230)

Exhaust Muffler Assembly

from

$211.99
This BRExhaust muffler assembly is constructed by one of the leading aftermarket suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no modifications required. The component is designed to offer corrosion protection in addition to optimal noise reduction and low backpressure. Built from 16-gauge steel tubing and fully aluminized, these mufflers feature an OE-style direct fit configuration compatible with your import or domestic vehicle-while the interior design of the muffler box ensures quiet performance.
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Top-Rated Exhaust Muffler Brands For Your 1999 GMC Jimmy

When it comes to finding the perfect Exhaust Muffler for your 1999 GMC Jimmy, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Exhaust Muffler brands including Walker, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $78.99. Purchasing a Exhaust Muffler from us here at Advance Auto Parts is a smart move for both you and your 1999 GMC Jimmy, providing peace of mind with parts that meet or exceed OEM standards.

Popular Walker 1999 GMC Jimmy Exhaust Mufflers

If you’re looking for a top-quality Exhaust Muffler for your 1999 GMC Jimmy, Advance Auto Parts has exactly what you need with our selection of Walker Exhaust Mufflers. We have 3 Walker Exhaust Mufflers in stock for this fitment, all known for their durability and precision fit. With prices starting at just $78.99 and an average cost of $133.66, you’ll find the perfect Exhaust Muffler for your needs and budget. Walker Exhaust Mufflers for the 1999 GMC Jimmy come highly rated, with over 23 customer reviews and an impressive average rating of 4.2 stars. Choosing a Walker Exhaust Muffler from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Sound Solution Exhaust Muffler
from $78.99
(19)
Sound Solution Exhaust Muffler
“not bad but dimensions are one side hole is 2.5 other side is 2.3/4”
Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID)
from $201.99
(1)
Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Outlet (ID)
“Bolted right in. a perfect fit to the Walker catalytic converter I had to install at the same time. The mellow rumble of the system is a good sound.”
SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID)
from $119.99
(3)
SoundFX Direct Fit Exhaust Muffler 2.25" Outlet (ID)
“Exact fit. Heavy duty.works and sounds great.”

FAQs for 1999 GMC Jimmy Exhaust Mufflers

What are the best-selling Exhaust Mufflers for 1999 GMC Jimmies?

Out of 10 Exhaust Mufflers that fit 1999 GMC Jimmies, the following parts are the top sellers:

What’s the price range for 1999 GMC Jimmy Exhaust Mufflers?

The prices of Exhaust Mufflers for the 1999 GMC Jimmy range from $64.99 up to $211.99 for the most premium parts.

What is the average price of an Exhaust Muffler for a 1999 GMC Jimmy?

The average price for Exhaust Mufflers for the 1999 GMC Jimmy is $145.12. Keep in mind the variety of part types within our Exhaust Muffler category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust Mufflers for other GMC Jimmy model years?

Yes, we carry Exhaust Mufflers for 24 model years of GMC Jimmies between 1973 and 2001. The following model years are the most popular for Exhaust Muffler purchases: 2001, 2000, 1998, 1997, 1996, 1995, 1991, 1990, and 1989.

What are the cheapest Exhaust Mufflers for my 1999 GMC Jimmy?

The cheapest 1999 GMC Jimmy Exhaust Mufflers we carry are:

Does Advance Auto Parts sell Exhaust Mufflers for any other 1999 GMC models?

Yes. We stock Exhaust Mufflers for 12 other popular 1999 GMC models. Some of the most popular are 1999 Yukon Exhaust Mufflers, 1999 Sierra 1500 Exhaust Mufflers, 1999 Savana 1500 Exhaust Mufflers, 1999 Savana 2500 Exhaust Mufflers, and 1999 K2500 Exhaust Mufflers.

What are the top-rated Exhaust Mufflers that fit the 1999 GMC Jimmy?

The one 1999 GMC Jimmy Exhaust Muffler we have in stock is the Sound Solution Exhaust Muffler. It is rated 1 stars and costs $64.99.

What types of Exhaust Mufflers do you sell for my 1999 GMC Jimmy?

We currently have just 1 Exhaust Muffler in stock for a 1999 GMC Jimmy, and as of 11/2/25, it is a Muffler.

Can I get help with 1999 GMC Jimmy Exhaust Muffler orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Mufflers and more.

What is your return policy for GMC Jimmy Exhaust Mufflers?

Advance Auto Parts keeps returns simple. For new GMC Jimmy Exhaust Mufflers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.