Fasterproms: 2.31" Upper Pulley [LT4 Camaro, Corvette, CTS V]
Looking to spin that supercharger harder and make more power? Add this smaller solid 1 piece upper pulley to the supercharger snout replacing the OEM 2.5 pulley and you will increase the supercharger speed by approximately 5%!
Requires snout modification
For an interchangeable 2.3 that requires no snout modification, check out our line of Griptec interchangeable pulleys, available from 2.175" on up: