AFE 49-14001 LARGE BORE-HD 4" 409 STAINLESS STEEL CAT-BACK EXHAUST SYSTEM FOR 01-05 GM 6.6L DURAMAX

The AFE 49-14001 Large Bore-HD 4" 409 Stainless Steel Cat-Back Exhaust System is the ultimate upgrade for GM Diesel Trucks from 2001 to 2005, equipped with a V8-6.6L (td) LB7/LLY engine. Engineered to excel in even the harshest conditions, this exhaust system delivers exceptional performance while enhancing your truck's power and torque.

Crafted from mandrel bent 4" stainless steel tubing, the Large Bore-HD exhaust ensures maximum flow, resulting in increased horsepower, torque, and lower Exhaust Gas Temperatures (EGT). The system features a 4" cat-back design with a muffler for optimal functionality. Its construction strikes a perfect balance between performance, fit, and value.

Installation is a hassle-free process, as the system utilizes factory mounting locations, guaranteeing stability. High-quality OE style band clamps create a leak-free seal, ensuring a complete 360-degree sealing surface. The free-flowing 24" muffler absorbs high-pitch tones, producing a robust sound that unleashes the full potential of your truck's horsepower and torque.

For a flawless fit, OE style bayonet hangers maintain pipe stability during intense vibration and heat. The bayonet tip secures the hanger bushing, providing a consistent OE-style fit over time. Smooth transition bends and mandrel bent stainless steel tubing promote maximum flow with low turbulence, ultimately enhancing horsepower, torque, and reducing EGT's.

Please note that this product does not require a CARB EO#. All AFE exhaust systems are proudly engineered and manufactured in our Corona, California facility.

Compatible with Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 models with the specified Duramax V8 6.6L (td) Diesel engines. Elevate your truck’s performance with the uncompromising quality of the AFE Large Bore-HD exhaust system.