Wake up your 2001-2004 LB7 with the drop in replacement Fleece Performance LB7 Cheetah Turbocharger. Featuring a Fleece Performance custom 63mm compressor wheel and high flow Inconel turbine wheel,...

Increase your LB7?s potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance Modified LB7 Intake Horn ? that?s about the...

The Fleece Performance Intake Air Heater Delete is a simple way to remove the air intake heater on your 2001-2004 GM 6.6L Duramax. Complete with a pre-drilled and tapped ports for a boost gauge,...

Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)This Part Fits:YearMakeModelSubmodel2001-2004ChevroletSilverado 2500...

Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)This Part Fits:YearMakeModelSubmodel2001-2004ChevroletSilverado 2500...

Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit comes complete with everything needed to get the job done right the first time.Installation...

Fleece Performance 01-07 GM Duramax/11-16 GM 2500/3500 Duramax Oil Cooler Adapter KitInstallation InstructionsThis Part Fits:YearMakeModelSubmodel2001-2005ChevroletSilverado 2500...

This black 1.5in T4 Pedestal Spacer is designed for use with T4 Turbos installed on Duramax engines when an extra inch of elevation out of the valley is required, although it could be used in any T4...

Designed to eliminate the factory fuel flow restriction that begins at 3000 RPM;Correlates to lost horsepower when you need it most;Cost effective upgrade;Fuel pressure regulator will need to be...