2001-2004 Chevy/GMC 6.6L Duramax, 3″ Turbo Down Pipe
The LB7 Duramax comes factory with a restrictive down pipe. Using MBRP Performance direct replacement down pipe will increase exhaust flow, fuel economy, and performance as well as lowing EGT’s. You may also see benefits like quicker turbo spool and throatier exhaust sound. Off-road/Race use only!