Free shipping on orders over $100 Details
2001-06 GM Suburban, Avalanche, Yukon - American Thunder Cat-back Exhaust  SystemYouTube Button

Flowmaster American Thunder Cat-back Exhaust System

2001-2006 Chevrolet Suburban, Avalanche, GMC Yukon XL 1500 with 5.3L engine. Aluminized Steel

PART# 17342

Be the first to write a review
$687.00   Suggested Retail
$617.95   Your Price
Estimated shipping date: 12/11/2020
Email Me When Available
Free Shipping
Add to Wish List

Starting at $55 a month with Learn More
Aggressive to moderate sound


For the person who wants a subtle custom appearance with all the benefits that a Flowmaster® Cat-back exhaust system provides. This American Thunder® exhaust system delivers a deep powerful exterior tone with a mild to moderate interior tone. The mandrel-bent 3.00-inch aluminized steel tubing flows into a specially designed resonator and the Super 50 Series™ performance muffler helps keep things fairly mellow inside the cab area of the vehicle. The system uses the factory hanger locations and the dual 2.50-inch tailpipes are finished off with 3.00-inch polished stainless steel tips. Like all Flowmaster systems, benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation and is covered by our 3-year Limited Warranty. This system is covered by our 3-year Limited Warranty. Check out system #817342 for those who prefer a full stainless steel exhaust system covered by our Lifetime Limited Warranty.


  • Specially Tuned Resonator to Help Control Interior Drone
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Dyno Tuned for Maximum Performance
  • Deep Powerful Exterior Exhaust Tone
  • Uses the Factory Hanger Locations
  • Polished Stainless Steel Tips


Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Side Exit
Heat ShieldNo
Inlet Diameter (in)3
MaterialAluminized Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesSuper 50 Series
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeCat-back
Tip Diameter (in)4
Tip Quantity2
Tubing Diameter (in)2.5
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number17342



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 2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 with 5.3L engine (Does Not Fit with Auto-Leveling Option.)


We Suggest
    Also Bought

        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.

         X  Roadkill Buick Sweepstakes
         X  Roadkill Buick Sweepstakes