The aluminum rear lower suspension holder features the Integrated Suspension Settings (I.S.S.) that allows for quick & easy suspension geometry changes. The front suspension holder features a GTX'23 center mounting screw to keep the front suspension mounted on the car when other front end components are removed for easier maintenance. Using the eccentric suspension bushings in the aluminum suspension holders and a few suspension shims, the GTX suspension geometry can be completely adjusted in seconds for quickly dialing in settings for any track condition. CNC-machined from high-quality Swiss 7075 T6 aluminum and black coated