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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.

KB Diesel Performance LLC

3.5" Turbo Exhaust Downpipe for 2005-2010 Chevy GMC Duramax 6.6 LLY LBZ LMM

SKU yes, i understand fitment will be tight
$305.95

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.

$305.95
Fitment:

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.

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Total price$0.00