JDM Engineering has used Griptec for many Supercharger pulley applications even including our Cobra Jet Race cars!
Add more boost and Horsepower to your 2020 GT500 today using a Griptec Pulley kit! JDM packaged Griptec's Interchangeable Upper pulley kit and tool for easy installation. Includes one pulley size of choice. Select size at check out in comments section.
The Griptec Pulleys are interchangeable by size:
3.00" = STOCK BOOST
2.85" = + 2 PSI BOOST
2.75" = + 3 PSI BOOST (Requires 1050X Fuel injectors)
2.65" = + 4 PSI BOOST (Requires 1050X Fuel injectors and Race Fuel)
