K-tuned Circuit X Shifter - B/D Series all-models each stud is centerless ground

each stud is centerless ground to make it as close to perfectly concentric as possible

Stage 4 Package Includes:

Grams Performance injectors are cold-cut with diamond grinders in less than three seconds for high performance with “pre-seating”

The JDM black dipstick is a slight improvement

grandparents

K-tuned Circuit X Shifter - B/D Series all-models each stud is centerless groundK tuned Circuit X Shifter B D Series We released our original B D Shifter back in 2012. Since then we have released three different versions. We have also made some small changes to update the design over the years. Now, in 2019 we have overhauled the three designs. Starting at the bottom we have replaced the white plastic cage that holds the ball with a Delrin bushing. Delrin is used as it is one of the strongest plastics available, it is resistant