Hey guys. As stated in the title i have a broken spring on my car, bmw want silly money for a set of springs, but nowhere else seems to list them for the m-tech model, i have tried a standard set but it obviously sits too high. Does anyone know of a possible replacement that would keep the ride height & stiffness correct? I.e how similar are the M3 REAR springs in comparison to the m-tech stuff? Many thanks.