4" Downpipe-Back Full Exhaust Delete | GM/Chevy 6.6L Duramax 2001-2016 Choose Your Truck:2011-2015 LML check engine lights

check engine lights

After purchase you'll get a vehicle info form to fill out

and hot exhaust gases that keep getting re-routed back into your engine

then the included 4" rust-resistant DPF & CAT delete pipe bolts in place of the factory units and the EGR delete kit blocks off the passages and reroutes flow

The EFI Live bundle ships with the tuner

4" Downpipe-Back Full Exhaust Delete | GM/Chevy 6.6L Duramax 2001-2016 Choose Your Truck:2011-2015 LML check engine lightsThe 4" Downpipe Back DPF Delete Exhaust for the 2007. 5 2010 LMM Duramax pulls the Diesel Particulate Filter (DPF) and catalytic converter (CAT) off your Silverado or Sierra for good. That ends the forced regen cycles, cuts exhaust backpressure, and lets your 6. 6 Duramax pull the way it's capable. Here's how it works: this 4" aluminized steel exhaust runs from the downpipe back to the rear of the truck, replacing the factory DPF and CAT sections. OEM