Fleece Performance LB7 Cupless Cylinder Heads requires-vin When the exhaust gases enter

When the exhaust gases enter the muffler they quickly expand and split via the airfoil cone technology with an opening like a jet engine

FlashScan V3 ships with 1 OBDII cable and 1 USB cable

Warranty covers defects in parts replaced by DP Customs and the craftsmanship of assembly

DP Customs Duramax S400 Coldside Assembly — The DP Customs mandrel bent 3” intercooler pipe and billet y-bridge combination features a Vibrant vanjen style clamp in between

The long distance in the "c channel" frame creates a vulnerable location when torque and leverage is applied in events such as truck pulling

Fleece Performance LB7 Cupless Cylinder Heads requires-vin When the exhaust gases enterFleece's freedom series cylinder heads provide a permanent solution to the problematic injector cups by eliminating them altogether. These cylinder heads are built from brand new castings inside of Fleece's state of the art engine shop and are guaranteed to meet or exceed the oem specifications for optimal performance and reliablity. These cylinder heads are CNC machined with a multi angled valve job prior to being fitted with all new valves, guides,