Our K20C1 Civic Type-R 2.0T M-series M11 Extreme Duty main studs are made from the highest grade American steel that have gone through rigorous testing and treatment. We use a true beam design all the way through the length of the stud (it's not necked-down or undercut like others) resulting in better clamping force and torque values. "Only settle for the Best!"
The kit includes: Main studs, nuts, and washers
