KBDP 3.5" Downpipe for a Duramax!
- Eliminates the restrictive OEM factory flare joint
- Quick release 3.5" V-band clamp
- Removable 3.5" to 4" 90 degree exhaust adapter
- CNC Mandrel Bent from 409 stainless steel 3.5" tube
- Removes all restrictions found in the crushed original equipment design
- Heat wrap included
- LLY, LBZ and LMM engines require a drivers side transmission dipstick tube.
Fits: 2005-2010 Chevy GMC Duramax 6.6 LLY LBZ & LMM engines
*Note: Fitment is extremely tight with a 3.5" downpipe. Worn engine mounts may cause enough flexing for rubbing when accelerating. We will not respond to angry fitment emails if you choose to stuff a 3.5" downpipe on your stock daily driver.