E46 Complete Chassis Reinforcement Kit - (323, 325, 328, 330, and M3) M3 Or NON-M:NON M This upgrade is a night

This upgrade is a night and day difference when paired with Delrin front carrier bushings and a Z3 short shifter conversion

Do it right

& 2002 POLYURETHANE REAR TRAILING ARMS (RTAB)

One of those weaknesses is where the E46 rear subframe mounts to the chassis

E46 Complete Chassis Reinforcement Kit - (323, 325, 328, 330, and M3) M3 Or NON-M:NON M This upgrade is a nightGARAGISTIC E46 COMPLETE CHASSIS REINFORCEMENT KIT Like the E36 that came before it, the E46 had some of the same weaknesses in the structure of the chassis. BMW discovered that over time, due to the bending of the rear of the chassis in conjunction with the movement allowed by the rubber bushings in the rear, the chassis mounting points for the subframe would flex, weaken, and rip out of the chassis. Well, that was just the rear subframe problem only.