E46 M3 Front BBK Adapter BracketsDescription We now offer brackets for the E46 M3 so you can install the popular Porsche Brembo 996 Boxster S caliper upgrade. CNC Machined Brackets are designed to fit a Porsche 996 Brembo front caliper to the E46 M3 front spindle. There is only one rotor size option for this bracket, the E46 M3 CSL 345mm fronts. This requires 5. 5mm to be machined from the mounting boss of the caliper. We offer this service on your calipers for $99 plus return
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