Rear adjustable traction arms for the 370Z and G37 (2dr and 4dr)*** LIFETIME WARRANTY !!!These adjustable arms allow fine tuning of the rear suspension and allow slight adjustment of rear wheel toe. When lowering your car 1.5"-2" and adjusting rear camber back to spec, your toe will need to be pulled back into spec as well, which can be achieved with these arms. They also feature high quality ENERGY SUSPENSION polyurethane bushings for increased handling. The increased stiffness of the arm and upgraded bushing help to eliminate "wheel hop". Vehicle applications:* 07-08 G35 Sedan* 08+ G37 Sedan and Coupe* 09+ 370zFabricated out of high strength alloy steel, with a stainless center turnbuckle for increased stiffness and strength. Center turnbuckle has fine threads for precise adjust-ability. Arms are produced in house and are precision TIG welded.** For cars lowered more than 2", you may not be able to pull your toe back into spec as well as your camber. Please email us for a suggested fix that will allow camber/toe to be pulled back into spec with minor modification to the vehicle **** we STRONGLY suggest getting your alignment done by a professional with a computer****These arms ship 3-7 business days after order placement, thanks