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- Big Brake Kits
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135/BMW Performance brakes for your E36 and E46! This kit uses the factory BMW Performance Brembo 6-piston calipers (same as 135i) with E46 330-sized rotors (325x25mm / 12.8") for a bolt on braking upgrade. Everything comes complete - 6-piston calipers, rotors, custom caliper bracket, brake lines, and a pad sensor. Choose your preferred brake fluid and brake pads below (or call us for a recommendation).
Brake rotor options -
Brake pad options -
This is a direct fit to all E36 and E46 (not E46 M3) and comes with a lot more braking power than standard (especially on non-M E36). Consequently there will be more front brake bias - the front brakes have more bite than before. During normal street driving all you will notice is that the brakes feel stronger. For track driving we recommend a more aggressive rear pad to balance the brake bias or a StopTech or Brembo big brake kit that has been properly engineered for the chassis (not a retrofit).
Requires 17" wheels and wheel spacers may be required depending on wheel spoke design. E46 Style 68 wheels shown are used with 5mm spacer.
Upgrade your BMW's braking performance with the ECS Big Brake Kit, designed to deliver enhanced stopping power and reduced brake fade. This comprehensive kit includes 6-piston calipers from the E82, E88, and the E9X BMW Performance big brake kit, along with original equipment pads for optimal braking efficiency. The package also incorporates 325x25 ECS 2-piece rotors, ECS caliper brackets, Exact Fit braided stainless reinforced brake lines, essential hardware, and one liter of Pentosin Super DOT4 Brake Fluid.
Key Benefits:
The ECS Big Brake Kit ensures that brake bias remains stable, making it suitable for various applications. For track use, consider pairing with a more aggressive rear pad. These calipers are compatible with most 17” wheels; however, please refer to the attached template for fitment verification. Additionally, follow the attached installation guide for replacing the OEM caliper carrier with the ECS caliper carrier.
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.
This product was last offered at the strikethrough price on
06-13-2026
This product was last offered at the strikethrough price on
06-13-2026
This product was last offered at the strikethrough price on
06-13-2026
This product was last offered at the strikethrough price on
06-13-2026
Upgrade your BMW's braking performance with the BMW E46 Front CSL Big Brake Kit Plus (345x28). This comprehensive brake kit is designed specifically for BMW E46 models, offering superior stopping power and reliability. Engineered with precision and quality in mind, this kit provides numerous benefits:
Transform your BMW E46 with this high-quality brake kit for a safer and more exhilarating driving experience.