1998 GMC K1500 Performance Exhaust Mufflers

Your 1998 GMC K1500 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Performance Exhaust Mufflers you desperately need.

We currently carry 9 Performance Exhaust Mufflers to choose from for your 1998 GMC K1500, and our inventory prices range from as little as $82.99 up to $204.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Performance Exhaust Mufflers for the 1998 GMC K1500. We only sell parts from trusted brands like Dynomax so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 96 reviews on our Performance Exhaust Mufflers for the 1998 GMC K1500 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Performance Exhaust Mufflers stock in-person!

Performance Exhaust Mufflers for Your 1998 GMC K1500

Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.43043)

40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, 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.
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Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval (Part No.17233)

Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval

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:
  • 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.
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Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 16" L, 3" In, 3" Out, Round (Part No.17296)

Ultra Flo Muffler: Universal Fit, Stainless Steel, 16" L, 3" In, 3" Out, Round

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:
  • 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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Dynomax – Super Turbo Muffler Uni Fit Aluminized Steel 20" L, 2.5" In, 2.5" Out, Oval (Part No.17748)

Super Turbo Muffler Uni Fit Aluminized Steel 20" L, 2.5" In, 2.5" Out, Oval

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:
  • 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
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Dynomax – Super Turbo Muffler Universal Fit Aluminized Steel 13" L, 3" In, 2.5" Out, Oval (Part No.17674)

Super Turbo Muffler Universal Fit Aluminized Steel 13" L, 3" In, 2.5" Out, Oval

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:
  • 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
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Flowmaster Inc. – 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, Non-Reversible, Aggressive Sound (Part No.8043043)

40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 13in long, 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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Flowmaster Inc. – 50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, Non-Reversible, Moderate Sound (Part No.53058)

50 Series Muffler, 3in Offset Inlet 3in Offset Outlet, 17in long, 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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Dynomax – Ultra Flo Muffler: Universal Fit Stainless Steel, 20" L, 2.5" In, 2.5" Out, Oval (Part No.17289)

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

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:
  • 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. – Super 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.853048)

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

from

$154.99
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
  • No internal packing to blowout
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FAQs for 1998 GMC K1500 Performance Exhaust Mufflers

What are the most popular Performance Exhaust Mufflers for the 1998 GMC K1500?

With 2 brands you can trust, our most popular Performance Exhaust Mufflers for the 1998 GMC K1500 parts are: