2.55-Inch Supercharger Pulley Kit

This kit delivers substantial horsepower and torque gains beyond the stock 556 horsepower and 551 lbs ft of torque, while maintaining safe boost and supercharger RPM levels. Lingenfelter's own testing has demonstrated an output of 630 BHP and 630 lbs ft of torque with the pulley upgrade installed. The kit features a 2.55-inch diameter steel supercharger drive pulley with a black powder coat finish and an 8-rib design, along with an 8PK1655 8-rib serpentine belt. It also includes the Lingenfelter LS9 solid supercharger isolator coupling and the Lingenfelter air duct kit with an LPE logo. An installation kit with all necessary hardware is provided. Crucially, the installation of this kit necessitates ECM programming. Lingenfelter offers this programming as an option if you provide your ECM. The Lingenfelter CTSV pulley kit is designed to increase boost on a stock engine by approximately 3-4 psi. Additionally, a K&N air filter and a 160-degree thermostat are also recommended and required for optimal performance, and are available as related items.