What about fitting the M3 ARB's and their more rigid mounts? Are they compatible?
M3 front = 26.5mm
M3 rear = 20mm
I notice BMW have different part number for ARBs with the same diameter??? on E90/E91 regular models. They show the same between some models, indicating the same bar will fit both models. Then for m sport variants of the said models, they have same diameter ARBs with different part numbers...
Is this due to different geometries or materials? thus meaning the diameter itself is useless as an indicator between models?
E63 AMG here at last!