All anodized aluminum mounts plus a powder coated steel front lower. Track model is designed for a firm, planted, stable experience that puts you in control of body roll dive and squat transforming your Tesla into a serious track machine by running 12 & 10 KGMM springs while sitting farther into suspension travel with a healthy and adjustable amount of rebound travel with the use of included helper springs. Our suspension is known for reliability, response and feedback due in part to all spherical bearing mounts. Separate spring preload and ride height adjustments allow you freedom of settings. True rear coil over damper conversion is our standard for the last 19 years and it's a unique offering for this chassis that allows tons of adjustability versus separated springs and shocks, including the option to use our camber adjustable rear lower arms however the coilovers dont require them, they can be mounted on al all stock suspension with the OEM spring removed from the OEM rear lower arm as seen in our YouTube build series. The Ultra High Range adjustable damper allows you to freely swap springs without having to rebuild and dyno-tune the shocks, and you would never have to buy another set of coilovers to change the character of your suspension. You are in total control of rebound at the turn of a knob and your compression stiffness can change anytime you swap springs, including the option to bolt on air springs at any time. Rear wheel drive RWD variant. Sold as a set of 4, front rear left and right coilovers.