If you are looking to upgrade the braking on your E46 M3, replacing your calipers for Brembos from a Porsche 996 is a great option, the only problem is getting them to fit! Creations Motorsport has the solution with their high tensile SG strength caliper adapter brackets. Included with high strength stainless steel mounting hardware, these nearly indestructible brackets will give you the ability to upgrade to calipers that offer a much higher clamping force, bringing your car to a screeching halt.
These adapters are designed to let you use the standard M3 325mm x 28mm rotors - part number: 34112229529 (See ES2215203)
For fitment, 12mm of material must be machined from the mounting boss of the caliper. See pictures above
*For some BMW hubs, 3mm may need to be ground off of the outer edge.*
Part Numbers for the Porsche Calipers: 996.351.425 & 996.351.426
This Part Fits the Following Vehicles