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The 9products control arm inner bushings are available in both rubber and monoball. Monoball is weathersealed so it could be used in street cars as well to replace OE rubber bushings. OE-style rubber bushings are available in shore-65 (stock) and shore-85 (performance).
Porsche original monoball bushings (997 341 541 0R) have been made in two different lengths. Our monoball is available with spacer so the product replaces the worn factory unit in both applications.