2001-2016 6.6L Duramax LLY LBZ LMM LML 3" Turbo Downpipe & Passenger Side Up-pipe

3" Turbo Downpipe & Passenger Side Up-Pipe – 2001–2016 Duramax 6.6L
Unlock more power and quicker spool on your Duramax with this upgraded 3" turbo downpipe and LB7-style up-pipe. Built for diesel performance, this setup boosts flow, lowers EGTs, and delivers that aggressive turbo sound you’re after.

• 3” Turbo Downpipe – Increases flow by 20% over stock with better heat retention

• LB7-Style Up-Pipe – Quicker turbo response and lower EGTs from smoother mandrel bends

• Performance Gains – Expect up to +21 HP and +24 lb-ft torque

• Built for Duramax Workhorses – Fits 2001–2016 6.6L V8 trucks (non-EGR direct fit for 01–04 LB7)

Note: Not a direct EGR replacement for 2004.5+ trucks unless used in off-road applications with EGR delete.