LB7 Duramax Downpipes

Boost exhaust flow and turbo efficiency with LB7 Duramax downpipes designed for 2001–2004 6.6L Duramax engines. These high-quality downpipes reduce backpressure, improve turbo spool, and increase horsepower and torque. Upgrade to durable, direct-fit downpipes for better performance and reliability.