Genuine BMW 3 Series G20/G21 M Performance Big Brake Kit BBK – Red Calipers – OEM M Sport Brake Upgrade, 4-Piston Front, Drilled & Grooved 374mm Front 345mm Rear Discs – Fits 320i 330i 330e M340i xDrive – Retrofit (PN 34112450161)

Transform the way your 3 Series stops with BMW’s factory-engineered performance braking package in gloss red. This complete front and rear upgrade delivers harder bite, shorter stopping distances and excellent heat management for spirited road use, all while keeping a true OEM look and feel. Perfect for G20 Saloon and G21 Touring owners wanting a serious step up in response and confidence without compromise.

We have fitted this setup on multiple customer cars at MJ Modifications and the feedback is consistently outstanding. Drivers report a firmer, more reassuring pedal, exceptional repeatability under heavy use and a premium appearance thanks to the red calipers with M logo. If you’re searching for a genuine BMW uprated brake package that fits right, performs brilliantly and looks the part, this is the one.

Reasons enthusiasts choose this upgrade

• BMW factory-engineered components for precise fitment and reliability
• Real-world stopping power with robust fade resistance for fast road driving
• Lightweight two-piece rotors with aluminium bells for improved cooling
• Vented, drilled and grooved discs for strong initial bite and consistent performance
• Four-piston fixed aluminium front calipers for powerful, even clamping
• Sporty red finish with M branding for a premium OEM appearance
• Complete kit supplied with discs, calipers, pads, shields and sensors for a straightforward retrofit

Technical details

• Front calipers: 4-piston fixed aluminium - 18 inch compatible
• Front discs: 374 x 36 mm - vented, drilled and grooved - lightweight multi-part design
• Rear calipers: 1-piston floating with integrated electronic parking brake - 17 inch compatible
• Rear discs: 345 x 24 mm - vented, drilled and grooved - lightweight multi-part design
• Materials: aluminium front calipers, cast iron rear calipers, cast iron friction rings with riveted aluminium bells, aluminium brake shields

What you receive

• 4 calipers with performance pads pre-installed
• 4 lightweight brake discs
• 4 brake guards
• 2 pad wear sensors
• Assembly instructions and customer information

Vehicle applications

G20 Saloon: 318d, 320d, 320i, 320ix, 330d, 330dx, 330e, 330i, 330ix, M340i, M340ix

G21 Touring: 318d, 320d, 320i, 330d, 330i, 330ix, M340ix

Important: Compatible with vehicles equipped with energy recovery and M Sport braking system.

Fitment notes and safety

• Minimum wheel size: 18 inch front and rear
• DSC coding must be adapted to suit this BMW performance brake system after installation
• Bed-in procedure: drive gently for the first 200 km to achieve full performance

Installation and coding

Professional fitting is recommended. MJ Modifications offers installation and DSC coding at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

We verify fitment prior to shipping. Provide your UK registration or the last 7 digits of your VIN at checkout to ensure correct compatibility for your G20 or G21.

Part number

34112450161

Manufactured by

BMW Genuine BMW Performance Parts

Warranty

Two year manufacturer warranty for UK customers and one year manufacturer warranty for international customers when VIN is supplied at checkout on compatible vehicles.

Search terms customers use

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