2020-2021 GMC Sierra 3500 HD Standard Cab Pickup
When updating your ECU firmware
May run as a coil-over setup with #20135 hardware kit and 8" tall spring sold separately
rectangle port tube design provides superior exhaust flow over factory manifolds to let your Ford Windsor block engine breathe better
4150 and 4160 Instantaneous response
Moroso Radius Tooth Belt - 33.7 x 1/2 106 Teeth Engine Oil Additive 2020-2021 GMC Sierra 3500 HDFits Radius Tooth Pulleys with 8mm Pitch Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. Moroso manufactures over 4000 products, from oil pans and oiling systems, to ignition wire, ignition components, valve covers, fuel system equipment, air cleaners, hard core racing tools, chassis and suspension equipment and numerous other performance parts. The