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Flowmaster Exhaust Pontiac Firebird 5.0L / 5.7L (86-91) 2.50" or 3.0" Catback - American Thunder - 2.50"
Flowmaster Exhaust Pontiac Firebird 5.0L / 5.7L (86-91) 2.50" or 3.0" Catback - American Thunder - 2.50"
Flowmaster Exhaust Pontiac Firebird 5.0L / 5.7L (86-91) 2.50" or 3.0" Catback - American Thunder - 2.50"
Flowmaster Exhaust Pontiac Firebird 5.0L / 5.7L (86-91) 2.50" or 3.0" Catback - American Thunder - 3.0"
Flowmaster Exhaust Pontiac Firebird 5.0L / 5.7L (86-91) 2.50" or 3.0" Catback - American Thunder - 2.50"

Flowmaster Exhaust for Pontiac Firebird V8 5.0L (1986-1991) American Thunder Catback with 2.50" or 3.0" Tips

Regular price
$727.95
Sale price
$727.95

Free Shipping - Lower 48 US States

In Northern California? Get this professionally set up & installed!

Fitment Information

  • Pontiac Firebird V8 5.0L (1986, 1987, 1988, 1989, 1990, 1991)
  • Fits Base, Formula, S/E, Trans Am, Trans Am GTA
  • Fits with 5.0L or 5.7L engine using 3.00-inch flanged catalytic converters.

Emissions Compliance

This exhaust does not remove or replace any emissions components and is 50 state emissions legal.

Specs & Features

  • Finish: Aluminized Steel
  • Inlet Diameter: 3.00 inches (both variations)
  • Main Piping Diameter:
    • Part #17234: 3.00 inches
    • Part #17233: 2.50 inches
  • Tail Pipe Quantity: 2 (both variations)
  • Exhaust Type: Cat-Back
  • Exit Style: Dual Out Rear
  • Sound Level: Aggressive / Moderate
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • 80 Series Crossflow Performance Muffler
  • Dyno Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Mild Interior Tone
  • Easy Installation

    Product Description

    Upgrade your 1998–2002 Chevrolet Camaro or Pontiac Firebird equipped with the 5.7L LS1 V8 engine with the Flowmaster American Thunder Cat-Back Exhaust System, available in two tip-size variations: Part #17234 with 4.00-inch polished tips and Part #17233 with 3.00-inch polished tips. Both systems feature a large-case 80 Series Cross-Flow performance muffler and mandrel-bent 16-gauge aluminized steel tubing, delivering a deep, powerful exhaust tone with an aggressive exterior sound and a moderate interior tone.

    Both variations feature a 3.00-inch inlet, dual rear-exit tailpipes, factory hanger compatibility, and included hangers, clamps, and installation hardware. Choose the 4.00-inch tips on Part #17234 for a larger, more prominent appearance, or the 3.00-inch tips on Part #17233 for a more understated finish. Both systems are backed by Flowmaster's 3-Year Limited Warranty.

      Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.

      Flowmaster Brand Logo

      Prop 65 Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


      More in this category
      Flowmaster American Thunder Exhausts
      Pontiac Firebird Exhaust
      Pontiac Firebird Parts
    • Category: Exhaust Systems
    • Brand: Flowmaster

      Reviews on this product


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      Actual item may vary from picture