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Front CSL Big Brake Kit (345x28)

Upgrade to ECS 2-piece E46 M3 CSL rotors for increased brake torque and thermal capacity. Includes everything you need - including brand new calipers and Hawk HPS brake pads!
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$1085.95 (Sale - Save 10%)
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Availability: Usually Ships on Feb 1, 2021
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Product Details

ECS Tuning engineers set out to offer a braking upgrade for the venerable E36/E46 M3, and had several goals in mind: 

  • Increased brake torque
  • Increased thermal capacity
  • Inexpensive, readily available replacement pads and rotors

The result was a package that meets all of these requirements, and then some. With our custom-designed caliper bracket, your M3/Z3M can utilize our ECS 2-piece E46 M3 CSL rotors, delivering a beautiful, high performance braking package that fits behind 18" wheels, as well as some 17" big brake friendly wheels. 

Includes ECS 2-piece rotors, ECS Stainless Set Screws, Exact-Fit brake lines, new (not remanufactured) brake calipers with Hawk HPS pads, and Pentosin Super DOT4 fluid for a more thorough upgrade as compared to our standard Front CSL Big Brake Kit. 

What makes ECS 2-piece rotors so special?

  • Aluminum hats: To save weight, each rotor ring is bolted to a lightweight aluminum hat made from high quality 6061 aluminum, and hard anodized with an attractive matte black finish that is both durable and corrosion resistant.
  • Gray cast iron rings: Long known for its wear resistance and stable friction characteristics, cast iron is favored for brake rotors due to its ability to absorb and dissipate large amounts of heat.
  • 2-Piece construction: Conventional rotors are unable to cope with the stress of drastic heat fluctuations and are prone to warping. ECS 2-Piece semi-floating rotors allow the radial expansion of the rotor ring - preventing warping.
  • Heat treated: Heat treating of ECS 2-Piece rotors makes them stiffer and stronger - for improved performance and further prevention of warping.
  • Directionally veined: ECS 2-Piece rotors feature curved, directional veins that accelerate air away from the rotor at a higher velocity, leading to consistent, rapid cooling.
  • Drilled and slotted: 2-Piece rotors are cross drilled to promote cross ventilation for improved cooling as well as slotted to clean brake pads and carry away water and brake dust. Cleaner brake pads result in faster, more consistent stopping. Drilled holes are chamfered while slots are machined with a ball end mill - both to prevent cracking that may be present on improperly machined rotors.
  • Overall weight savings: This particular ECS 2-Piece rotor weighs only 18 lbs compared to a stock E46 M3 ZCP/CSL rotor at 19.1 lbs. Lighter rotors reduce unsprung weight and rotational mass to improve both braking and suspension performance.
  • Manufacturing quality: Non-friction ring surfaces, including internal vents, are painted to resist salt and other corrosives. Ground braking surfaces ensure rings run parallel, and pads bed easily.

Installation is as simple as any pad and rotor brake service.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E36 318i M42 1.8L
BMW E36 318i M44 1.9L
BMW E36 318ic M42 1.8L
BMW E36 318ic M44 1.9L
BMW E36 318is M42 1.8L
BMW E36 318is M44 1.9L
BMW E36 318ti M42 1.8L
BMW E36 318ti M44 1.9L
BMW E36 323ic M52 2.5L
BMW E36 323is M52 2.5L
BMW E36 325i M50 2.5L
BMW E36 325ic M50 2.5L
BMW E36 325is M50 2.5L
BMW E36 328i M52 2.8L
BMW E36 328ic M52 2.8L
BMW E36 328is M52 2.8L
BMW E46 323Ci M52 2.5L
BMW E46 323i M52 2.5L
BMW E46 325Ci M54 2.5L
BMW E46 325i M54 2.5L
BMW E46 325xi M54 2.5L
BMW E46 328Ci M52 2.8L
BMW E46 328i M52 2.8L
BMW E46 330Ci M54 3.0L
BMW E46 330i M54 3.0L
BMW E46 330xi M54 3.0L
BMW Z3 1.9 M44 1.9L
BMW Z3 2.3 M52 2.5L
BMW Z3 2.5 M52 2.5L
BMW Z3 2.5i M54 2.5L
BMW Z3 2.8 M52 2.8L
BMW Z3 3.0i M54 3.0L
BMW Z4 2.5i M54 2.5L
BMW Z4 3.0i M54 3.0L
BMW Z4 3.0i N52 3.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

Kit Contents

Description Brand Qty
Super DOT4 Brake Fluid - 1 Liter Pentosin - Corporate Logo 1
Front HPS Compound Performance Brake Pad Set Hawk - Corporate Logo 1
Stainless Brake Rotor Set Screw - Priced Each ECS - Corporate Logo 2
Front Anti Rattle Spring - Priced Each ATE - Corporate Logo 2
CSL Caliper Bracket - E36/E46NM ECS - Corporate Logo 2
2 Piece Rotor - E46 M3 CSL - Left Front ECS - Corporate Logo 1
2 Piece Rotor - E46 M3 CSL - Right Front ECS - Corporate Logo 1
42mm Caliper Guide Pin ECS - Corporate Logo 4
Front Brake Caliper - Left Bremmen Parts - Corporate Logo 1
Front Brake Caliper - Right - (NO LONGER AVAILABLE) Bremmen Parts - Corporate Logo 1
Exact-Fit Stainless Steel Brake Line - Pair ECS - Corporate Logo 1
BMW Caliper Bushing Kit Meyle - Corporate Logo 2

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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