GripTec LS9/ZR1 Blower Pulley (For Lingenfelter LPE Hub) ZR1 Supercharger Pulley Size:2.35" LS9/ZR1 Blower Pulley (Black) Max Inner Dimension: 110mm

Max Inner Dimension: 110mm

The kit does not include (but you may need depending on your setup):

This Z06/ZR1 mass air flow (MAF) sensor (15865791) is a key part of the engine management system

increasing air velocity for a consistent and powerful supply to your engine

no pipe on exhaust

GripTec LS9/ZR1 Blower Pulley (For Lingenfelter LPE Hub) ZR1 Supercharger Pulley Size:2.35" LS9/ZR1 Blower Pulley (Black) Max Inner Dimension: 110mmNOTE: This is the PULLEY ONLY. If you need a hub for this pulley use this one. Tweak your boost levels with this GripTec "upper" pulley upgrade for your 2. 3L LS9 blower. The stock LS9 blower came on C6 Corvette ZR1s and this bolt on upgrade allows you to change the spin rate of the ZR1's supercharger. An upper pulley upgrade is a cheap and effective way to boost power. This version of the ZR1 blower pulley is designed to fit the Lingenfelter (LPE)