Future Classic - E9X M3 Reinforced Trailing Arm SetAmidst all of the suspension components available for the E9X M3 today, there is one that has gone overlookedthe stamped steel trailing arm. Over time, this arm has been known to fatigue and bend, especially under hard cornering or suspension compression. Consequently, the arm can buckle without warning which can be, at the very least, inconvenient or downright devastating. Future Classic's trailing arm set beefs up the OE arms by adding a dimpled,