Paragon PBK Rear Big Brake Kit for BMW E46 M3 (2000–2006) – PA025 4-Pot/4-Piston Calipers, 380x32mm Floating 2-Piece Vented Rotors – Rear Brake Upgrade/Conversion for Track Day & Fast Road – Handbrake Delete – Part No PBK.04.011.380.320.TL.01.02.Px.R

Rear Brake Package for BMW E46 M3 by Paragon – PA025 4‑pot, 380 x 32 mm Floating Two‑Piece Discs

Transform the way your E46 M3 slows down on circuit and on fast road drives. This motorsport‑spec rear brake package delivers serious bite, repeatable performance and superb pedal control, with larger 380 x 32 mm floating two‑piece discs and lightweight PA025 4‑pot aluminium calipers. If you are chasing stronger rear axle stability, better balance with a front upgrade and real fade resistance, this setup is a proven solution.

At MJ Modifications we have installed and used this system on customer cars and our own builds. Feedback has been consistently positive – improved confidence, cooler running and outstanding consistency over long sessions.

Why it works

• Real stopping confidence – sharper initial response with progressive modulation for trail braking and high speed stability
• Thermal control – 380 mm x 32 mm floating discs with 48 directional vanes move heat away fast to reduce fade and cracking
• Lightweight strength – rigid 4‑pot aluminium calipers for a solid, communicative pedal
• Optimised hydraulics – piston areas matched for the OE master cylinder and ABS, so pedal feel remains natural
• Durable finish – hard anodised calipers and rotor hats resist corrosion and discolouration in extreme use
• Pre‑assembled rear axle package – designed for straightforward installation with everything required for the conversion

Key details

• Calipers: Paragon PA025 4‑pot aluminium
• Rear discs: 380 mm diameter x 32 mm thickness, fully floating two‑piece
• Ventilation: 48 directional vanes for efficient cooling
• Recommended use: fast road and track days
• Note: this conversion deletes the factory handbrake and parking brake function

Vehicle compatibility

BMW M3 E46 2000–2006 – rear axle.

Fitment verification

We will confirm suitability before dispatch. Add your UK registration or the last 7 characters of your VIN at checkout.

Professional installation

Want it fitted correctly first time? Book installation with MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

Part number

PBK.04.011.380.320.TL.01.02.Px.R

Who should choose this setup

Ideal for E46 M3 owners who need a serious rear brake upgrade for track days, time attack and fast road builds where stronger rear control, better heat management and reliable lap‑after‑lap performance are essential.

Search terms customers use

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