Genuine BMW F80 M3 F82 M4 M Performance Sports Suspension Kit 33502414216. The M Performance sport chassis (coilover suspension) for M3/M4 models significantly increases the dynamic performance of standard cars. The additional lowering of the car not only produces a more dynamic driving feel, but also reinforces the car’s sporty appearance. This suspension kit comes with all the nuts and bolts required to fit the item. 33.52.7.850.600 x2. 31.30.7.854.446 x2. 07.11.9.905.418 x2. 07.11.9.905.610 x2. 33.32.6.768.884 x4. 31.30.7.855.400 x10. 34.33.9.806.226 x2. 33.32.6.760.668 x2. We pride ourselves in our customer service. We will always do all we can to resolve in fast time.