RKP Carbon Fibre Diffuser - BMW 3 Series F80 M3 | 4 Series F82 | F83 M4 DCT Many claims to 15-30hp+ have

Many claims to 15-30hp+ have been made over the years

Additional 30hp on a stock vehicle

The body lines molded into the front bumper of the M5 are retained in the outside surfaces of the front lip

Designed to be used with a standard lap and diagonal seatbelt without modifications but also features harness slots for a 4 point harness if you venture out onto track at the weekend (Circuit version)

RKP Carbon Fibre Diffuser - BMW 3 Series F80 M3 | 4 Series F82 | F83 M4 DCT Many claims to 15-30hp+ haveToday, RKP is proud to announce our first entry into what will be an extensive F8x M3 M4 catalog. While the majority of the F8X M car is stunningly muscular, the diffuser section in particular leaves something to be desired. The flat polyurethane insert installed from BMW does not match the M3 4s aerodynamically sculpted exterior, and so was the first item RKP elected to attack. In contrast, the RKP diffuser was designed with full length fins that