All series of Girdle are specifically designed and CNC machined from AL6061 T6 aluminum by S90. While the OEM main Girdle holds only 3 points. S90 feels that it is provides inadequate support for the performance enthusiasts.

S90 main Girdle comes with 5 Point Main Girdel for maximum support and balancing at hight-end output by reading vibration. Thus, improving throughout torque and horsepower.