I just ordered the M Performance upgrade (34112221445) from ebay for $1,238 but you have to order the rear rotors separately. They offer two different part numbers for the rear rotors (34206797598 or 34206797600). I can't figure out which is the correct rotor for the Z4 with M Performance kit. Has anyone installed the M Performance brake upgrade with the 370mm front rotors? What rear rotors did you install?
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2009 Z4 DCT - Hexon RR600, MMP Inlets/Outlets, Wagner EVO 2 Comp FMIC, Fuel-It TBI, Fuel-It Stage 2 LPFP, ER CP, Forge DVs, N20 TMAP, BQ Tune 93/E65, BMS DCI, AR Catless DPs, BMS OCC, RB PVC
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