They aren’t compatible with the M3. GC sells E46 regular plates. They cannot do stock M3 camber. They only go a far as center like the regular e46. That means the zero position for M3 is not actually 0 . If you want the right part from GC then their street version is the only one actually designed for the M3. If you want the real deal, then Turner and H&R actually designed their properly. These plates are so poorly designed that the bolt bracket also runs into the stainless plate underneath the aluminum one and because of that you can even get the full range. Conclusion, these plates the way they are designed are joke level engineering. Even the cheap godspeed plates are magnitudes better
They aren’t compatible with the M3. GC sells E46 regular plates. They cannot do stock M3 camber. They only go a far as center like the regular e46. That means the zero position for M3 is not actually 0 . If you want the right part from GC then their street version is the only one actually designed for the M3. If you want the real deal, then Turner and H&R actually designed their properly. These plates are so poorly designed that the bolt bracket also runs into the stainless plate underneath the aluminum one and because of that you can even get the full range. Conclusion, these plates the way they are designed are joke level engineering. Even the cheap godspeed plates are magnitudes better
I don't think the coupler would hit the spring perch when you include the bump stop.