ECS Tuning Front CSL Big Brake Kit 345x28 for BMW E36 M3 and Z3 M
Upgrade your BMW E36 M3 or Z3 M with the ECS Tuning Front CSL Big Brake Kit 345x28 for serious braking performance, increased brake torque and much higher thermal capacity. This proven conversion uses ECS Tuning 2-piece E46 M3 CSL 345 mm rotors with a custom caliper bracket, allowing you to reuse your existing factory calipers, pads, brake lines and hardware. It is a straightforward, pad-and-rotor style service that fits behind 18 inch wheels and some 17 inch big brake friendly wheels.
We have fitted this upgrade for customers and the feedback has been excellent. Strong, repeatable stopping power, improved cooling and confident pedal feel make this a brilliant fast-road and track-capable front brake upgrade for E36 M3 and Z3 M owners.
Why choose the ECS Tuning CSL big brake conversion
- 345x28 mm 2-piece rotors based on E46 M3 CSL specification for increased brake torque and heat capacity.
- Custom-designed caliper bracket relocates your OEM E36 M3 or Z3 M front caliper to suit the larger CSL rotor.
- Aluminium hats made from high quality 6061 aluminium, hard anodised in matte black for durability and corrosion resistance.
- Grey cast iron rings for excellent wear resistance and stable friction characteristics under high heat.
- 2-piece semi-floating construction allows radial expansion to help prevent warping under drastic heat cycles.
- Heat treated rotor rings for added stiffness and strength.
- Directionally veined curved internal vanes accelerate air through the rotor for faster, more consistent cooling.
- Drilled and slotted faces help ventilate, clean the pad surface and evacuate water and brake dust. Chamfered holes and ball end milled slots help resist cracking.
- Overall weight savings each ECS 2-piece rotor weighs only 18 lbs compared to a stock E46 M3 ZCP/CSL rotor at 19.1 lbs, reducing unsprung and rotational mass.
- Manufacturing quality non-friction surfaces, including internal vents, are painted for corrosion resistance. Ground braking surfaces ensure parallelism and easy bedding.
Real-world benefits
- Noticeably stronger initial bite and increased brake torque from the larger 345 mm disc.
- Greater thermal capacity and consistent pedal feel during repeated hard stops.
- Improved cooling from directional vanes and cross ventilation.
- Reduced unsprung mass for sharper braking and suspension response.
- Low running costs with inexpensive, readily available replacement pads and rotors.
Easy installation and pad choice
Installation is as simple as any pad and rotor brake service. Reuse your existing calipers, pads, lines and hardware. Looking to refresh friction material at the same time? Choose from any E36 M3 or E46 M3 brake pad options.
Wheel clearance
Fits behind most 18 inch wheels and some 17 inch big brake friendly wheels. Always check template or clearances on your wheel setup.
Vehicle fitment
- BMW E36 M3 S50 3.0
- BMW E36 M3 S52 3.2
- BMW Z3 M Coupe S52 3.2
- BMW Z3 M Coupe S54 3.2
- BMW Z3 M Roadster S52 3.2
- BMW Z3 M Roadster S54 3.2
Professional fitting at Nforcd
Want it fitted by specialists? Nforcd offers professional installation in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Looking for E36 M3 big brake kit, E36 M3 brake upgrade, Z3 M big brake kit, BMW E36 front brake upgrade, E46 M3 CSL rotor conversion, 345 mm front discs, 345x28 front rotors, drilled and slotted 2-piece rotors, semi-floating rotors, caliper relocation bracket for E36? This ECS Tuning Front CSL Big Brake Kit delivers the CSL 345x28 performance you want with OEM reliability and serviceability.