RSS TARMAC SERIES Suspension Kit - 981/982-718 Cayman / Boxster Stage - 1 Suspension Kit corrects lowered suspension geometry, eliminates rubber bushing deflection, sharpens drivers' feedback, and improves vehicle handling dynamics. Specify chassis type when ordering. ADJUSTABLE FRONT & REAR TOE/BUMP STEER KITS- Correct suspension geometry changes in the front & rear of the lowered vehicle and allow additional toe adjustment at the toe steer arm. Features heavy-duty, high tolerance monoball rod ends for precise suspension articulation. The rod ends are height adjustable to help reduce/eliminate bump steer. LOCKING PLATE KIT- Designed for use with our Adjustable Rear Toe/Bump Steer Kit. It replaces the factory eccentric bolt which can come loose under racing and/or aggressive driving conditions. Preserve your alignment settings with this kit.