GMC Sierra 1500 Performance Exhaust - Flowmaster - Cat Back American Thunder - `04-`07
GMC Sierra 1500 Performance Exhaust - Flowmaster - Cat Back American Thunder - `04-`07

Available Options
Drive now, Pay later with Affirm
or with PayPal
Both options will be available upon checkout.

GMC Sierra 1500 Performance Exhaust — Flowmaster American Thunder Cat-Back (2004–2007). Aggressive outside, moderate inside for everyday driving.
Heavy 16-gauge, mandrel-bent aluminized steel with a Super 50 Series muffler delivers a deep, well-mannered note. Dual 2.50-inch tails clear the factory spare and give two exit choices: straight out the back or behind each rear wheel (towing friendly). Polished 3.00-inch 304 stainless tips are embossed with the Flowmaster name. Includes hardware and instructions, uses factory hangers, and is dyno-tuned. Fits 2004–2007 (2007 Classic only) GMC Sierra/Chevrolet Silverado 1500, non-HD, 2WD/4WD, Crew Cab short bed (5.5-ft) with 4.3L, 4.8L, or 5.3L engines. 3-year limited warranty.
Features
- Aggressive exterior, moderate interior
- 16-gauge mandrel-bent aluminized steel
- Super 50 Series performance muffler
- Dual 2.50-inch tails; rear or dual side exits
- Polished 3.00-inch 304 stainless tips
Questions? For guidance, installation, and customization, call Austin 512-982-9393 (TX) or Los Angeles 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area.
If you are considering multiple items, contact us for shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov





