Fleece Performance 2017+ GM Silverado 2500/3500 6.6L L5P Duramax High Flow Intake Horn - FPE-L5P-INTAKEHORN

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...

Fleece Performance 17-19 GM Duramax 6.6L L5P Fuel Filter Upgrade KitUser 1

Fleece Performance 2020 GM Duramax 6.6L L5P w/Short Bed Fuel Filter Upgrade KitUser 1

Fleece Performance 17-19 GM 2500/3500 Duramax LP5 Fan Extension Harness

Fleece Performance 17-19 GM Duramax 2500/3500 Heavy Duty Transmission Cooler lines