2001-2016 Chevy GMC Duramax 6.6L Downpipe for LB7 LLY LBZ LMM LML - KSP Performance

Optimize Your Duramax's Performance with the KSP Performance High-Flow Exhaust Downpipe. This precision-engineered downpipe is designed as a direct replacement for the 2001-2016 Chevy Silverado HD and GMC Sierra HD 2500/3500 trucks equipped with the 6.6L Duramax Diesel engine, including the LB7, LLY, LBZ, LMM, and LML variants.​​

Crafted from high-quality T304 stainless steel, this downpipe is built for exceptional durability and resistance to extreme heat and corrosion. It features a mandrel-bent design with a smooth interior to maximize exhaust flow, reduce backpressure, and improve turbo spool-up. By allowing your engine to expel exhaust gases more efficiently, this upgrade can lead to noticeable gains in horsepower and torque, improved throttle response, and potentially enhanced fuel economy. The precise CNC-machined flanges ensure a perfect seal and easy, direct bolt-on installation without requiring modifications, making it a reliable solution for both repairing a worn-out stock part and performing a performance upgrade.