1998 Pontiac Firebird Mufflers

Your 1998 Pontiac Firebird 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 Mufflers you desperately need.

We currently carry 5 Mufflers to choose from for your 1998 Pontiac Firebird, and our inventory prices range from as little as $84.99 up to $160.99.

On top of low prices, Advance Auto Parts offers 3 different trusted brands of Mufflers for the 1998 Pontiac Firebird. We only sell parts from trusted brands like Flowmaster Inc. 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 18 reviews on our Mufflers for the 1998 Pontiac Firebird from previous customers.

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

Mufflers for Your 1998 Pontiac Firebird

Flowmaster Inc. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42443)

40 Series Muffler, 2.25in Offset Inlet 2.25in Offset Outlet, 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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Flowmaster Inc. – 80 Series Muffler, 2.5in Offset Inlet 2.5in Dual Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42583)

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

from

$160.99
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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Dynomax – Super Turbo Muffler: Di Fit Aluminized Steel, 19" L, 2.5" In, 2.5" Out, Oval (Part No.17739)

Super Turbo Muffler: Di Fit Aluminized Steel, 19" L, 2.5" In, 2.5" Out, Oval

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:
  • 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
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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21415)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$131.99
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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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.21417)

Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed

from

$158.99
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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FAQs for 1998 Pontiac Firebird Mufflers

What are the most popular Mufflers for the 1998 Pontiac Firebird?