Now legal for Spec Miata racing per rule 9.1.7.C.3.p in the SCCA GCR!
One of very few adjustable upper control arm bushing options for the Miata, and these are of great quality. These are two piece design: a polyurethane bushing with an inner aluminum tube that has an offset hole to provide the ability to extend the camber on your front wheel by allowing you to rotate the mounting orientation of the bushing. It works in the same manner as the OEM caster/camber adjustment bolts on the lower control arms.
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