GripTec LT4 Blower Pulley (For ZPE Hub) LT4 Supercharger Pulley Size:2.50" LT4 Pulley (Black) ZPE (the company behind the

ZPE (the company behind the GripTec pulley system) has their own mounting "hub" (the ZPE hub) that's required to use this LT5 pulley

Exhaust (Stock)

Experience increased horsepower and torque

These ported LSA cylinder heads come direct from GM with the following configuration:

This is the perfect companion for your ride's fuel system

GripTec LT4 Blower Pulley (For ZPE Hub) LT4 Supercharger Pulley Size:2.50" LT4 Pulley (Black) ZPE (the company behind theNOTE: This is the PULLEY ONLY. If you need a hub for this pulley use this one. Tweak your boost levels with this GripTec "upper" LT4 pulley upgrade for your 1. 7L LT4 supercharger. The stock LT4 blower came on V3 CTS Vs, 6th gen Camaro ZL1s and of course the C7 Z06. This bolt on upgrade allows you to change the spin rate of the supercharger. A Griptec upper pulley upgrade is a cheap and effective way to boost power. ZPE (the company behind the GripTec