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2001 Camaro 3.8L - American Thunder Cat-back Exhaust System 17358YouTube Button

Flowmaster American Thunder Cat-back Exhaust System

1998-2002 Chevrolet Camaro and Pontiac Firebird with 3.8L engine.

PART# 17358

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$585.00   Suggested Retail
$525.95   Your Price
Estimated shipping date: 12/11/2020
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Moderate sound


This cat-back American Thunder exhaust system is specifically designed for all 1998-2002 Chevrolet Camaro/Pontiac Firebirds with the 3.8L engine and delivers a moderately aggressive exterior sound with a moderate interior tone. The exhaust system is constructed with 2.50-inch mandrel-bent aluminized steel tubing, includes a specially tuned resonator to help keep the interior tone down to a minimum, then flows into the 80 Series cross-flow performance muffler for a deep muscular tone. The dual 2.50-inch tailpipes split for a true dual exhaust look out the back under the rear valance and are finished off with large 3.00-inch polished stainless steel tips. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and includes our 3-year Limited Warranty.


  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Moderately Aggressive Exterior Exhaust Tone
  • Dual 3.00-inch Polished Stainless Steel Tips
  • 80 Series Cross-flow Performance Muffler
  • Dyno Tuned for Maximum Performance
  • Features a Specially Tuned Resonator
  • Uses the Factory Hanger Locations
  • Easy Installation


Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialAluminized Steel
Muffler Part Number52583
Muffler Quantity1
Muffler Series80 Series Crossflow
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelModerate
System TypeCat-back
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)2.5
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number17358



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 1998-2002 Chevrolet Camaro and Pontiac Firebird with 3.8L engine using a slip fit catalytic converter.


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