1978 Pontiac Firebird Mufflers
Enhance and Protect Your 1978 Pontiac Firebird with Quality Mufflers
Maintaining the performance of your 1978 Pontiac Firebird starts with choosing the right parts, and high-quality Mufflers help ensure a reliable and efficient vehicle. At Advance Auto Parts, we offer Mufflers specifically for the 1978 Pontiac Firebird, ensuring a perfect fit and lasting durability. Choosing to shop with Advance Auto Parts means you’re making a smart decision to prioritize both quality and reliability for your vehicle.
Affordable and Reliable Mufflers for Every Budget
Finding affordable, quality Mufflers is easy at Advance Auto Parts. With prices starting as low as $56.99 and an average price of $154.89, you can choose one that fits your budget while delivering the quality you expect. Our Mufflers are competitively priced, ranging from $56.99 to $249.99, so you get value without compromising on strength or reliability.
Mufflers for Your 1978 Pontiac Firebird
Flowmaster Inc. – Super 10 Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842518)
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$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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Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.942553)
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$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.
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Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)
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$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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Flowmaster Inc. – Super 44 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.943048)
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$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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Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.842553)
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$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.
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Dynomax – Super Turbo Muffler: Di Fit Aluminized Steel, 19" L, 2.5" In, 2.5" Out, Oval (Part No.17739)
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$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
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.
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Walker – Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (ID) (Part No.21598)
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$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.
Hooker Headers – Aero Chamber Muffler (Part No.21729HKR)
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$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)
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$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.
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Flowmaster Inc. – 80 Series Muffler, 2.5in Dual Offset Inlet 2.5in Dual Offset Outlet, 13in long, Aggressive Sound (Part No.42582)
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$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.
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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.
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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.
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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.
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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.
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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:
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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 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
FAQs for 1978 Pontiac Firebird Mufflers
Which Mufflers are the top sellers for the 1978 Pontiac Firebird?
Out of 16 Mufflers that fit 1978 Pontiac Firebirds, the following parts are the top sellers:
from
$99.99
(13)
40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound
Mufflers
from
$84.99
(3)
Super Turbo Muffler: Di Fit Aluminized Steel, 19" L, 2.5" In, 2.5" Out, Oval
Mufflers
from
$56.99
This product is not rated
Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (ID)
Mufflers
How can I make sure that a part will be compatible with my 1978 Pontiac Firebird?
Our Pontiac Firebird aftermarket and OEM parts are designed specifically for the 1978 model. You can always find your specific fitment and compatibility for your 1978 Pontiac on an individual product page.
What is the price range for 1978 Pontiac Firebird Mufflers?
The range of prices of Mufflers for the 1978 Pontiac Firebird goes from $56.99 up to $249.99 for the most premium parts.
What is the average price of 1978 Pontiac Firebird Mufflers?
1978 Pontiac Firebird Mufflers average $154.89 for our selection of OEM and aftermarket parts.
Does Advance Auto Parts sell Mufflers for other Pontiac Firebird model years?
Which Mufflers are highest rated for the 1978 Pontiac Firebird?
Based on 270 customer reviews, our 1978 Pontiac Firebird Mufflers have an average rating of 4. Explore our top-rated Mufflers here:
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$134.99
(1)
Super 44 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound
“Had this super 44 installed on my 2018 Chevrolet Silverado 2500HD… sounds very nice.”
from
$169.99
(1)
50 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Moderate Sound
“Love the sound,but a baffle came loose inside one of the mufflers after only a couple of years. Now it rattles. Go stainless steel.”
Can I get help with 1978 Pontiac Firebird Mufflers orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Pontiac Mufflers and more.
What is your return policy for Pontiac Firebird Mufflers?
Advance Auto Parts keeps returns simple. For new Pontiac Firebird Mufflers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
Mufflers For Other Pontiac Firebird Model Years
Looking for parts for a different model year of the Pontiac Firebird? Below, you’ll find links to Mufflers for a range of model years, from 1967 models all the way up to 2002. At Advance Auto Parts, we carry high-quality OEM and aftermarket auto parts for popular years like 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, and more, ensuring you have access to the best options for your specific needs. Choosing a Mufflers from Advance Auto Parts means investing in top-tier parts that will keep your Pontiac Firebird running at its best, no matter the year.
