E36 Solid Subframe Inserts
Factory rubber inserts get soft over time, this causes your subframe to have unwanted movement from the chassis. This movement allows the subframe to slam around under hard driving. This fatigues the mounting points and can even rip them from the chissis, a common problem with the e36 chassis. Replacing them with Nerp Tech solid billet aluminum inserts will help eliminate these problems. The solid subframe inserts work best when paired with the Nerp Tech subframe reinforcement plates.