Chevrolet K20 Exhaust Mufflers

Your One-Stop Shop For Trusted Chevrolet K20 Exhaust Mufflers

If you’re in search of Chevrolet K20 Exhaust Mufflers aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 18 Exhaust Mufflers from top brands with prices ranging from $58.99 to $254.99.

Beyond great prices, we stock trusted brands manufacturing all types of Exhaust Mufflers for your Chevrolet K20. Of the 3 OEM and aftermarket parts brands we carry, some of the most popular are Walker, Flowmaster Inc., and BRExhaust.

And don’t forget to read customer reviews across all Exhaust Mufflers categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Exhaust Mufflers have to cost top dollar, and we prove it. Browse our top Chevrolet K20 Exhaust Mufflers below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Chevrolet K20 Exhaust Mufflers

Flowmaster Inc. – Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842548)

Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$126.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler we’ve ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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BRExhaust – Premium Universal Muffler (Part No.100-5086)

Premium Universal Muffler

from

$72.99
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.
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BRExhaust – Premium Universal Muffler (Part No.101-1170)

Premium Universal 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.
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Walker – SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD) (Part No.18124)

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

from

$77.99
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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Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942543)

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

from

$133.99
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.
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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

$123.99
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.
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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21910)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$116.99
The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

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/or 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
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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

$154.99
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.
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Flowmaster Inc. – Super 40 Series Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.8530452)

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

from

$165.99
The Super 40 features Flowmaster’s Delta Flow technology. It’s larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.

Product Features:
  • Durable fully welded 409 stainless steel
  • Deep aggressive exhaust note
  • Noticeable interior resonance
  • Excellent performance on high horsepower vehicles
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BRExhaust – Premium Universal Muffler (Part No.101-1193)

Premium Universal 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 – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.22329)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$121.99
The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

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/or 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
See More

Walker – Sound Solution Muffler (Part No.18624)

Sound Solution Muffler

from

$62.99
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.
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Walker – Sound Solution Muffler (Part No.18746)

Sound Solution Muffler

from

$62.99
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 Muffler, Direct Replacement, No Fabrication Needed (Part No.18191)

SoundFX Muffler, Direct Replacement, No Fabrication Needed

from

$94.99
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/or 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. – 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

$185.99
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.
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Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.17831)

SoundFX Muffler, Universal/ Fabrication Needed

from

$254.99
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 – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21784)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$89.99
Designed to deliver superior flow and OE-style sound, Walker Quiet-Flow mufflers are available for top-selling domestic and foreign vehicles.

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/or 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
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

$81.99
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/or 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

Exhaust Mufflers Brands You Can Trust For Your Chevrolet K20

3 trusted brands of Exhaust Mufflers line our shelves, ready to help keep your Chevrolet K20 running smooth. Below are some of the most popular brands and their top Exhaust Mufflers offerings:

Most Purchased Chevrolet K20 Exhaust Mufflers from Flowmaster Inc.

When you buy the most frequently purchased Flowmaster Inc. brand Exhaust Mufflers, you can be confident it will be the right part for your Chevrolet K20. Here are the Flowmaster Inc. Exhaust Mufflers Advanced Auto customers buy the most:
Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed
from $116.99
This product is not rated
Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed
Mufflers
SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
from $81.99
This product is not rated
SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
Mufflers

FAQs for Chevrolet K20 Exhaust Mufflers

What are the most purchased Exhaust Mufflers for the Chevrolet K20?

Out of 18 Exhaust Mufflers for the Chevrolet K20, the most popular in our inventory are:
SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
from $81.99
This product is not rated
SoundFX Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
Mufflers
SoundFX Universal  Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
from $77.99
This product is not rated
SoundFX Universal Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (OD)
Mufflers
SoundFX Muffler, Direct Replacement, No Fabrication Needed
from $94.99
This product is not rated
SoundFX Muffler, Direct Replacement, No Fabrication Needed
Mufflers

What are the top-rated Chevrolet K20 Exhaust Mufflers?

Top-rated Exhaust Mufflers for your Chevrolet K20 based on customer reviews/ratings are:
Sound Solution Muffler
from $62.99
(1)
Sound Solution Muffler
“It was great and in time. With a big discount for the part order on-line..”
Sound Solution Muffler
from $62.99
(1)
Sound Solution Muffler
“Simple product low price and does what is needed for the results in replacement”