Stage 1 Pulley Upgrade for C6 Corvette ZR1 initially published Expect a 7-9% Power gain

Expect a 7-9% Power gain

This upgrade kit produces excellent horsepower and torque improvements over the factory 638 horsepower and 604 lbs ft of torque while maintaining a safe level of boost and supercharger RPM

All Dynatech® headers come with full color instructions for easy installation

Mission accomplished

with excellent dyno results over a stock cam

Stage 1 Pulley Upgrade for C6 Corvette ZR1 initially published Expect a 7-9% Power gainMTI Racing Lingenfelter supercharger pulley upgrade kit is designed to enhance the new LS9 Corvette ZR1 supercharged engine. This upgrade kit produces excellent horsepower and torque improvements over the factory 638 horsepower and 604 lbs ft of torque while maintaining a safe level of boost and supercharger RPM. Testing at Lingenfelter has shown 680 BHP and 660 lbs ft of torque with the pulley upgrade kit installed. The pulley kit will overdrive the