1971 Pontiac Firebird Exhaust Mufflers
Keep Your 1971 Pontiac Firebird 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 1971 Pontiac Firebird 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 Flowmaster Inc.. For example, Flowmaster Inc. Exhaust Mufflers start at just $99.99 with an average 4.4 star rating. With over 1,120 reviews and a solid 4 star average, you can shop with confidence knowing other Pontiac Firebird owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1971 Pontiac Firebird Exhaust Muffler at Advance Auto Parts is around $164.91, with a range that starts at $99.99 and goes up to $249.99. With 13 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Aero Chamber Muffler, Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound, and 50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound start at just $164.99 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 Exhaust Manifold and Headers and Exhaust System Kits. At Advance Auto Parts, we’re here to help you keep your 1971 Pontiac Firebird in peak condition, inside and out.
Find Your Specific 1971 Pontiac Firebird Exhaust Mufflers
Looking for the perfect Exhaust Muffler for your 1971 Pontiac Firebird? You’re in the right place. Below, you’ll find links to various types of Exhaust Mufflers that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Exhaust Mufflers, ensuring durability and a precise fit for your Pontiac Firebird. Whether you’re driving a 1971 model or another popular model year like
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001, and
2002, we’ve got you covered. Purchasing Exhaust Mufflers from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Exhaust Mufflers that fit your vehicle.
Essential 1971 Pontiac Firebird Exhaust Mufflers
Walker – Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (ID) (Part No.21598)
from
$56.99
Product Features:
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- 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.
Walker – SoundFX Direct Fit Exhaust Muffler 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.18235)
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:
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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
Dynomax – Super Turbo Muffler: Di Fit Aluminized Steel, 19" L, 2.5" In, 2.5" Out, Oval (Part No.17739)
from
$84.99
Dynomax Super Turbo performance mufflers’ exclusive, patented, flow director design channels exhaust flow, and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow, and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance, while maintaining a mellow performance tone.
Product Features:
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Product Features:
- Large internal flow tubes improve exhaust flow and reduce backpressure
- Dyno proven to flow up to 700 SCFM
- Exclusive patented flow director channels exhaust flow and eliminates turbulence on most applications.
- Fiberglass matting technology absorbs unwanted interior resonance but maintains a mellow tone
- 1.75-inch to 3-inch inlet / outlet configurations
Hooker Headers – Aero Chamber Muffler (Part No.21729HKR)
from
$236.99
Aero Chamber Muffler
Walker – SoundFX Muffler, Universal/ Fabrication Needed (Part No.18119)
from
$78.99
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:
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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
Flowmaster Inc. – 80 Series Muffler, 2.5in Dual Offset Inlet 2.5in Dual Offset Outlet, 13in long, Aggressive Sound (Part No.42582)
from
$249.99
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)
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.
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BRExhaust – Exhaust Muffler (Part No.100-5053)
from
$161.99
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 Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (ID) (Part No.18375)
from
$78.99
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:
See More
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
Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.942553)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 40 Series Muffler, 2in Offset Inlet 2in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942043)
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, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.943053)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – Super 44 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.943048)
from
$134.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we’ve ever built! 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.18141)
from
$61.99
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:
See More
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
Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.5" Inlet (ID) 2.25" Outlet (ID) (Part No.21417)
from
$158.99
Product Features:
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- 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.
Walker – SoundFX Universal Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID) (Part No.18104)
from
$75.99
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:
See More
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
Flowmaster Inc. – 40 Delta Muffler 409S – 2.25 Offset In / 2.25 Offset Out – Aggressive Sound (Part No.842443)
from
$161.99
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
Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942543)
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. – Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842543)
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
Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.842553)
from
$184.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More
Walker – Sound Solution Exhaust Muffler (Part No.18679)
from
$60.99
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. – 50 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Moderate Sound (Part No.942453)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Walker – Quiet-Flow SS Direct Fit Exhaust Muffler 2.25" Inlet (ID) 2" Outlet (ID) (Part No.22253)
from
$107.99
Product Features:
See More
- 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.
Walker – Sound Solution Exhaust Muffler (Part No.18695)
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. – Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842518)
from
$99.99
Super 10 Series 409S stainless steel – single chamber mufflers. Intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off highway use and not for street driven vehicles. These mufflers utilize the same patented Delta Flow technology that is found in Flowmaster’s other Super series mufflers to deliver maximum performance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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Popular 1971 Pontiac Firebird Exhaust Mufflers Categories
Most Popular Mufflers for 1971 Pontiac Firebirds
Enhance your 1971 Pontiac Firebird with one of the 13 Mufflers we have in stock, starting at just $99.99.
Flowmaster Inc. – Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842518)
from
$99.99
Super 10 Series 409S stainless steel – single chamber mufflers. Intended for customers who desire the loudest and most aggressive sound they can find. Because these mufflers are so aggressive, they are recommended only for off highway use and not for street driven vehicles. These mufflers utilize the same patented Delta Flow technology that is found in Flowmaster’s other Super series mufflers to deliver maximum performance. Constructed of 16 gauge 409S stainless 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.942553)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)
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
Flowmaster Inc. – Super 44 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.943048)
from
$134.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we’ve ever built! 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.842553)
from
$184.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 50 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Moderate Sound (Part No.942453)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Hooker Headers – Aero Chamber Muffler (Part No.21729HKR)
from
$236.99
Aero Chamber Muffler
Flowmaster Inc. – Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842543)
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
Flowmaster Inc. – 80 Series Muffler, 2.5in Dual Offset Inlet 2.5in Dual Offset Outlet, 13in long, Aggressive Sound (Part No.42582)
from
$249.99
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros & Firebirds with transverse mufflers. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.943053)
from
$169.99
The three chamber design utilizes Flowmaster’s patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More
Flowmaster Inc. – 40 Delta Muffler 409S – 2.25 Offset In / 2.25 Offset Out – Aggressive Sound (Part No.842443)
from
$161.99
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
Flowmaster Inc. – 40 Series Muffler, 2in Offset Inlet 2in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942043)
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. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.942543)
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
Top-Rated Exhaust Muffler Brands For Your 1971 Pontiac Firebird
When it comes to finding the perfect Exhaust Muffler for your 1971 Pontiac Firebird, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Exhaust Muffler brands including Flowmaster Inc., and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $99.99. Purchasing a Exhaust Muffler from us here at Advance Auto Parts is a smart move for both you and your 1971 Pontiac Firebird, providing peace of mind with parts that meet or exceed OEM standards.
Popular Flowmaster Inc. 1971 Pontiac Firebird Exhaust Mufflers
If you’re looking for a top-quality Exhaust Muffler for your 1971 Pontiac Firebird, Advance Auto Parts has exactly what you need with our selection of Flowmaster Inc. Exhaust Mufflers. We have 3 Flowmaster Inc. Exhaust Mufflers in stock for this fitment, all known for their durability and precision fit. With prices starting at just $99.99 and an average cost of $123.32, you’ll find the perfect Exhaust Muffler for your needs and budget. Flowmaster Inc. Exhaust Mufflers for the 1971 Pontiac Firebird come highly rated, with over 15 customer reviews and an impressive average rating of 4.4 stars. Choosing a Flowmaster Inc. Exhaust Muffler from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$99.99
(1)
Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
“The product was perfect and was in excellent condition I love everything about the flowmaster super 10 series ,they sound great and give me the sound ”
from
$99.99
(13)
40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
“fit great easy install sounds nice”
from
$169.99
(1)
50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound
“Good price using my speed perks discount. Fast delivery had the parts in 4 days. It will be awhile before I install them but I know these flowmasters”
FAQs for 1971 Pontiac Firebird Exhaust Mufflers
What are the best-selling Exhaust Mufflers for 1971 Pontiac Firebirds?
Out of 13 Exhaust Mufflers that fit 1971 Pontiac Firebirds, the following parts are the top sellers:
- Aero Chamber Muffler (10637727) – $236.99
- Delta 40 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (20290847) – $164.99
- 50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound (20290814) – $169.99
What’s the price range for 1971 Pontiac Firebird Exhaust Mufflers?
The prices of Exhaust Mufflers for the 1971 Pontiac Firebird range from $99.99 up to $249.99 for the most premium parts.
What is the average price of an Exhaust Muffler for a 1971 Pontiac Firebird?
The average price for Exhaust Mufflers for the 1971 Pontiac Firebird is $164.91. 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 Pontiac Firebird model years?
What are the cheapest Exhaust Mufflers for my 1971 Pontiac Firebird?
The cheapest 1971 Pontiac Firebird Exhaust Mufflers we carry are:
- 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (16120043) – $99.99
- Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (10193884) – $99.99
- Super 44 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (20291382) – $134.99
- 40 Series Muffler, 2in Offset Inlet 2in Offset Outlet, Non-Reversible, Aggressive Sound (20290838) – $149.99
- 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (17310106) – $149.99
Does Advance Auto Parts sell Exhaust Mufflers for any other 1971 Pontiac models?
Yes. We stock Exhaust Mufflers for 1 other popular 1971 Pontiac models. Some of the most popular are 1971 LeMans Exhaust Mufflers and 1971 GTO Exhaust Mufflers.
What are the top-rated Exhaust Mufflers that fit the 1971 Pontiac Firebird?
The one 1971 Pontiac Firebird Exhaust Muffler we have in stock is the 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound. It is rated 4 stars and costs $99.99.
What types of Exhaust Mufflers do you sell for my 1971 Pontiac Firebird?
We currently have just 1 Exhaust Muffler in stock for a 1971 Pontiac Firebird, and as of 11/2/25, it is a Muffler.
Can I get help with 1971 Pontiac Firebird Exhaust Muffler orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Pontiac Exhaust Mufflers and more.
What is your return policy for Pontiac Firebird Exhaust Mufflers?
Advance Auto Parts keeps returns simple. For new Pontiac Firebird Exhaust Mufflers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.