GMC S15 Performance Exhaust Mufflers
Your GMC S15 will be happy to know that the search for the right Performance Exhaust Mufflers you’ve been looking for is over! Advance Auto Parts has 2 different Performance Exhaust Mufflers for your vehicle, ready for shipping or in-store pick up. The best part is, our GMC S15 Performance Exhaust Mufflers start from as little as $114.99.
When it comes to your GMC S15, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Performance Exhaust Mufflers brands so you can shop with complete confidence. Some of our top Performance Exhaust Mufflers brands are Flowmaster Inc. and Dynomax. We’re sure you will get the right product to keep that S15 running for a long time.
Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Performance Exhaust Mufflers for your S15, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!
Compare 25 GMC Performance Exhaust Mufflers
Flowmaster Inc. – Super 44 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.842548)
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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Flowmaster Inc. – 50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.52557)
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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Flowmaster Inc. – 70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound (Part No.53072)
from
$221.99
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.842446)
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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Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.43043)
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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Flowmaster Inc. – Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.942446)
from
$113.99
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. – 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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Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval (Part No.17233)
from
$139.99
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:
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Product Features:
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 16" L, 3" In, 3" Out, Round (Part No.17296)
from
$119.99
DynoMax Ultra Flo SS Polished performance mufflers are constructed of stainless steel for lifelong durability and completely polished for show-quality shine. The unrestricted, straight-through design is dyno proven to flow up to 2,000 SCFM and support up to 1,900 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.
Product Features:
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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
Flowmaster Inc. – 50 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.842553)
from
$175.99
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 Uni Fit Aluminized Steel 20" L, 2.5" In, 2.5" Out, Oval (Part No.17748)
from
$82.99
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
- Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
- Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
- Dyno proven to flow up to 700 SCFM
Dynomax – Super Turbo Muffler Universal Fit Aluminized Steel 13" L, 3" In, 2.5" Out, Oval (Part No.17674)
from
$89.99
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
- Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
- Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
- Dyno proven to flow up to 700 SCFM
Dynomax – Super Turbo Muffler Universal Fit Aluminized Steel, 18" L, 3" In, 3" Out, Round (Part No.17698)
from
$115.99
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:
See More
Product Features:
- Large internal flow tubes improve exhaust flow and reduce backpressure
- Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
- Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
- Dyno proven to flow up to 700 SCFM
Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Center Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.43041)
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. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.8042441)
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.
See More
Dynomax – Ultra Flo Muffler: Universal Fit Stainless Steel, 14" L, 2.5" In, 2.5" Out, Oval (Part No.17222)
from
$91.99
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:
See More
Product Features:
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval (Part No.17547)
from
$212.99
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
Product Features:
See More
Product Features:
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Flowtech – Afterburner Muffler, 3in Center Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.50370FLT)
from
$130.99Product Features:
- Made From Aluminized Case
- Rust And Corrosion Protection
- Stronger Seams Prevent Blow Out
- Provides More Horsepower
- Max Flow In Either Direction
- Powerful Sound With No Resonance
- Limited Lifetime Warranty
Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.8043043)
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.
See More
Dynomax – Ultra Flo Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval (Part No.17234)
from
$272.99
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
Product Features:
See More
Product Features:
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Flowmaster Inc. – 70 Series Muffler, 3in Center Inlet 3in Offset Outlet, 22in long, Non-Reversible, Mild Sound (Part No.853072)
from
$232.99
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Product Features:
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Product Features:
- Mild to stock exterior exhaust tone
- Minimal interior resonance
- Recommended for SUV/trucks/motorhomes/tow vehicles
- Improved horsepower, torque and potential mileage improvement
- Race proven patented Delta Flow technology
Flowmaster Inc. – 50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.53058)
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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Hooker Headers – Competition Turbo Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Mild Sound (Part No.21005HKR)
from
$63.39
Competition Turbo Mufflers utilized a low back pressure baffle network designed to flow in either direction resulting in better performance and economy.
Product Features:
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Product Features:
- Low Backpressure Baffle Network
- Compact Design
- Improved Engine Efficiency
- Better Performance And Economy
- Throaty Sound On Acceleration
- Quiet At Idle And Cruising
- Double Wrapped Aluminized Steel
Flowmaster Inc. – 50 Series Muffler, 3in Offset Inlet 3in Center Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.53056)
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.
See More
Dynomax – Ultra Flo Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval (Part No.17289)
from
$204.99
DynoMax Ultra Flo SS Polished performance mufflers are constructed of stainless steel for lifelong durability and completely polished for show-quality shine. The unrestricted, straight-through design is dyno proven to flow up to 2,000 SCFM and support up
Product Features:
See More
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
FAQs for GMC S15 Performance Exhaust Mufflers
What are the most popular Performance Exhaust Mufflers for the GMC S15?
With 2 brands you can trust, our most popular Performance Exhaust Mufflers for the GMC S15 are:
from
$123.99
This product is not rated
40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
Performance Exhaust Mufflers
from
$114.99
This product is not rated
Super Turbo Muffler, 2.25in Offset Inlet 2.25in Centered Outlet, Non-Reversable, Aluminized
Performance Exhaust Mufflers
Find Your GMC S15 Performance Exhaust Mufflers by Year
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