DIFtech Rear Subframe Bushings for FRS BRZ 86 Sleeve Delrin STX & FD Legal 10718

Fits Scion FR-S, Subaru BRZ, and Toyota 86 Billet CNC machined for precise fitment Machined from black Delrin and 6061 aluminum Complete Kit includes 8 bushings and 4 sleeves Solid bushing eliminates subframe movement under load Complies with Formula D height specifications Complies with SCCA autocross ST category rules Engraved positions for easy install Engineered, fabricated, and tested in the United States These FR-S/BRZ Rear Subframe Bushings completely replace the old rubber bushings in your subframe. They are machined to be Formula D legal, compliant with height specifications that don't allow raising of the subframe. These solid Delrin units also comply with SCCA ST category rules which don't allow any additional metal over stock in the bushing assembly. Delrin bushings are far more rigid than rubber bushings, and this assembly is 1.5 lbs lighter than similar solid aluminum kits. Stock rubber bushings allow a nice, quiet ride on the highway, but they also allow a lot of flex