4 inch Cat Back Aluminized Exhaust System

• Street sound profile
• Aluminized Steel Construction
• Mirror-Polished T304 Stainless Steel Tip
• Bolt-on Installation
• 3-Year Warranty

Maximize Exhaust Flow for Ultimate Performance

If your 2001-2005 GM 6.6L Duramax isn't delivering the performance you've been hoping for, a high-flow performance exhaust system could be the game-changer you need. MBRP offers a great solution with their 4in Cat Back Aluminized Exhaust System. This system is designed to maximize your exhaust flow, keeping your Duramax running at cooler temperatures. Your reward will be greater fuel efficiency, more torque, more horsepower, and a longer lifespan for your engine. And let's not forget a fan-favorite feature: the sound. This exhaust features MBRP's Street sound profile, which offers an aggressive growl without being overly obnoxious everytime you step on the throttle.

Built to Turn Heads

MBRP designed the 4in Cat Back Aluminized Exhaust System to withstand any adventure you go on, whether you're towing your RV to the campsite or racing to the finish line at your favorite track. Crafted from aluminized steel, this exhaust boasts excellent corrosion resistance, impressive heat resistance, and overall durability, all at a reasonable price point. Installation is also a breeze, as this system bolts directly onto your GM truck. For further peace of mind, MBRP backs this product with a 3-year warranty, allowing you to cruise the highway with confidence.

• California Proposition 65 Warning: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information go to www.p65warnings.ca.gov