Tarox 336mm Rear Big Brake Kit for BMW 3 Series E90 E91 E92 E93 (E9x) Non-M3 | Sport Compact | Multi-Piston Calipers, Vented Discs | Rear Brake Upgrade Fast Road & Track | 320d 325i 330i 335i | Bolt-On Rear Conversion, 18in+ Wheels

Transform your BMW E9x stopping power with a rear big brake conversion engineered in Italy for serious fast-road and track-day performance. This back-axle performance package delivers stronger bite, outstanding heat management and a firmer, more consistent pedal feel on the E90 platform, while keeping everyday drivability and electronics fully intact.

Why enthusiasts choose this upgrade

• Multi-piston billet alloy caliper for even pad contact, reduced fade and superb modulation
• Vented 336 mm single-piece rotors for excellent cooling and repeatable braking on spirited drives
• Optimised hydraulic balance to work with the factory master cylinder, servo and ABS/DSC
• Firmer pedal and confident stopping distances on B-roads, motorway runs and track sessions
• Precision-made in northern Italy with hand assembly and rigorous quality control

Key specs

• Caliper reference: B34GT-10
• Disc style: Single-piece cast vented, 336 mm diameter
• Minimum wheel size: 18 inch
• Placement: Rear axle

Pad compounds included at no extra cost

• Strada for fast-road confidence
• Corsa for mixed road and occasional circuit use
• Competizione for dedicated track applications

Rotor patterns available

• F2000 as standard for efficient gas evacuation and stability
• Sport Japan, D95 or C83 upon request to tailor bite, feel and dust management

Built to perform, built to last

• CNC-machined calipers from solid billet aluminium for strength and reduced weight
• Hard-anodised finishes in grey or black for maximum durability
• Colour anodising available on request; take extra care with aggressive wheel cleaners
• Low-maintenance sealing with O-rings to keep out dirt and debris

Compatibility

• BMW E90 platform rear upgrade, excluding M3
• Suitable for E90 saloon, E91 touring, E92 coupé and E93 convertible across petrol and diesel variants
• Designed to integrate with factory electronics without coding

Real-world results

We have installed this setup on customer cars and the feedback is consistently positive: stronger bite from cold, excellent high-speed stability and dependable, fade-resistant performance on repeated hard stops. It is a genuine step up from stock for anyone chasing a high-performance rear braking solution on the E9x chassis.

Professional fitting

For installation, we recommend our workshop, MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and wheel clearance guidance.

Lead time

Each kit is hand-built to order in Italy. Typical dispatch is up to 14 days.

Good to know

• Images for reference only
• Always verify wheel clearance; spacer use may be required depending on spoke design
• For the best finish longevity, remove wheels before cleaning and avoid acid-based products

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