AFE 49-44001 LARGE BORE-HD 4" 409 STAINLESS STEEL CAT-BACK EXHAUST SYSTEM FOR 01-05 GM 6.6L DURAMAX

The AFE 49-44001 Large Bore-HD 4" 409 Stainless Steel Cat-Back Exhaust System for GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY is a powerhouse upgrade designed to excel in rugged conditions. Crafted from mandrel bent 4" 409 stainless steel tubing, this system enhances flow dynamics, amps up horsepower and torque, and reduces exhaust gas temperatures.

Offering a variety of options, you can choose from a 4" cat-back with muffler, a muffler delete pipe, and a striking polished tip. The Large Bore-HD series strikes the perfect balance of performance, precise fit, and exceptional value.

Installation is a breeze, using factory mounting locations for stability and a hassle-free process. High-quality OE style flanges and band clamps ensure a leak-free seal from all angles. The powerful 24" long muffler absorbs high pitch tones, creating an aggressive sound that reflects the unleashed potential of your vehicle. For a race-inspired tone and maximum flow, the muffler delete pipe is also included.

Achieving a perfect fit is paramount, which is why OE style bayonet hangers are used to maintain stable pipe positioning during extreme conditions. The bayonet tip ensures an OE style fit that stands the test of time and vibration.

With 4" mandrel bent 409 stainless steel tubing and smooth transition bends reducing turbulence, the Large Bore-HD system optimizes flow, boosts horsepower and torque, and lowers exhaust gas temperatures for enhanced performance.

Please note that this product does not require a CARB EO# and is meticulously engineered and manufactured in our Corona, California facility. Compatible with various Chevrolet Silverado and GMC Sierra models, this exhaust system promises to elevate your driving experience to new heights.