ECS Tuning 2-Piece Lightweight Front Brake Rotors - Pair 300x22 - BMW E46 Performance Brake Discs
Serious about your BMW E46 stopping power and handling? These ECS Tuning 2-piece lightweight front brake rotors are a direct bolt-on upgrade for 300x22 mm applications. Cross-drilled and slotted, heat treated, and semi-floating, they deliver the performance brake upgrade E46 owners search for: reduced unsprung weight, faster heat dissipation, sharper pedal feel, and outstanding resistance to brake fade and warping. Better handling, better acceleration, and better braking.
We have fitted these on customer cars and the feedback has been excellent. If you want a BMW E46 brake upgrade that works on the road and stands up to spirited driving and track days, these ECS Tuning front rotors are a proven choice.
Why upgrade to ECS 2-piece rotors
- Weight saving - 3.6 lb per rotor compared to OE. Each rotor is approx 12 lb versus a 15.6 lb stock rotor.
- Reduce heat and warping - semi-floating design allows radial expansion of the ring to resist distortion under extreme temperature cycles.
- Improve response - lower rotational mass for quicker acceleration and more responsive turn-in.
- Shorter, more consistent stops - drilled and slotted faces cleanse pads, vent gases, and improve wet weather performance.
Key features and construction
- Size - 300 mm x 22 mm front rotors, supplied as a matched pair.
- 2-piece semi-floating - rotor rings bolted to lightweight aluminium hats to cut unsprung mass and shed heat quickly.
- Aluminium hats - high quality 6061 aluminium, hard anodised in matte black for durability and corrosion resistance.
- Grey cast iron rings - chosen for stable friction and excellent heat absorption and dissipation.
- Heat treated rings - increased stiffness and strength for long-term performance.
- Cross-drilled and slotted - chamfered holes and ball end milled slots help prevent cracking, clean the pad surface, and move water and dust away.
- Quality finish - non-friction surfaces including internal vents are painted to resist salt and road grime, with precision ground braking faces for easy pad bedding.
- Includes ECS stainless rotor set screws - a smart upgrade that replaces rusty factory fasteners.
Compatibility - BMW applications
Direct fit for models with 300x22 mm front discs. Always confirm your existing front rotor size before ordering.
- BMW E46 323Ci - M52 2.5
- BMW E46 323i - M52 2.5
- BMW E46 325Ci - M54 2.5
- BMW E46 325i - M54 2.5
- BMW E46 325xi - M54 2.5
- BMW E46 328Ci - M52 2.8
- BMW E46 328i - M52 2.8
- BMW Z3 3.0i - M54 3.0
- BMW Z4 3.0i - M54 3.0
- BMW Z4 3.0i - N52 3.0
What you gain on the road
Lower unsprung weight and reduced rotational inertia give your E46 a more agile front end, improved ride control, and stronger, more repeatable braking. Cross-drilled and slotted faces keep pads clean and consistent, while the semi-floating two-piece design and heat treatment fight the warping and fade that can plague conventional one-piece rotors.
Fitting service
Professional fitting available at Nforcd in Warwickshire. To request a fitting quote or discuss your setup, email Sales@nforcd.com.
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