Genuine BMW Big Brake Kits for BMW 3 Series E46 (1999-2005)

The stock E46 M3 brakes measure in at 328mm and use a 1-peice rotor. While these are great for road use and even some occasional track days, someone looking for the best track set up should look to change their brakes out to the E46 M3 CSL style brakes. With just the addition of a pair of caliper carriers and a new set of 345mm floating 2-piece rotors, you can substantially improve your braking performance.

E46 M3 CSL/Competition brake rotors offer a number of advantages over the stock rotors. First, they are larger, moving the friction surface further away from the center, creating more surface area. This helps to alleviate heat soak issues that would be found on smaller rotors. Second, they have built in cooling designs that allow the rotors to cool down quicker in between braking. Cross drilling allows for better cooling as well as better pad contact by allowing gasses and break dust to pass through and directional veining improves cooling by forcing through and directing the air flow to reduce temperatures.

This CSL rotor conversion kit can be used with factory wheel sizes of 18" and larger and any E46 M3 brake pad set can be used.