This suspension kit mounts to the stock mounting points, but is designed for racing use, where the stresses are higher, and ultimate strength and adjustability is paramount. Not for street use, as the amount of movement in the race suspension is insufficient for street use. As proven on the National Championship-winning factory race SL-C in 2011. Consists of specific uprights with 1-degree camber shims, machining for race calipers and offsets for race brake systems. Also includes race-specific control arms that are lighter, stronger, use encapsulated bearings (instead of rod-ends, as on the street suspension). Call us to coordinate your selection of brakes before you order this,