2004-10 Downpipe 3"/409 SS (Duramax LLY,LBZ,LMM)

Upgrade the exhaust system of your 2004-10 GM/Chevy Duramax with the Sixty-Six 3" Downpipe, expertly crafted for LLY, LBZ, and LMM models. Made from high-quality 409 stainless steel, this downpipe combines durability with performance-enhancing design. Its 3" diameter optimizes airflow, significantly boosting horsepower and torque. Ideal for those upgrading from a stock downpipe or completing a custom exhaust setup, this Sixty-Six downpipe ensures a perfect fit and impressive performance gains without the need for welding or complex modifications. Key Features: Precision Fitment: Specifically designed for 2004-10 GM/Chevy Duramax LLY, LBZ, and LMM models, ensuring seamless compatibility. High-Quality Material: Made from 409 Stainless Steel, renowned for its durability and corrosion resistance. Enhanced Airflow: 3" diameter pipe facilitates better exhaust flow, directly enhancing engine efficiency and power. Easy Installation: Direct fit replacement guarantees an easy installation process; no additional welding or modifications required. Performance Enhancement: Experience noticeable increases in horsepower and torque, improving overall vehicle performance. Corrosion Resistance: The robust construction provides long-lasting resistance against rust and environmental damage. Whether you're enhancing your vehicle for performance or durability, the Sixty-Six 3" Downpipe is an essential upgrade that delivers both. Boost your Duramax's capabilities today and enjoy a more powerful and efficient driving experience.