Powerflex Road Series Rear Diff Front Mount Bush Insert Kit - BMW 4 Series F32 F33 F36 - Polyurethane (Pair) - Fits Coupe, Convertible & Gran Coupe - Replaces OEM 33316792513

Rear Differential Front Mounting Insert Upgrade for BMW F32, F33, F36

Unlock tighter rear end control and smoother power delivery with these Powerflex poly bush inserts for the front location of the rear differential. Designed to sit inside the factory rubber mount and occupy the voids, they curb excess movement under throttle, reduce wheel hop and axle tramp, and give your 4 Series a more connected, confidence-inspiring feel on the road.

We fit these regularly at MJ Modifications and run them on our own cars. Owners consistently report sharper driveline response, improved traction out of bends and better stability without harshness. It is a simple, cost-effective handling mod that transforms everyday driving as well as spirited B-road blasts.

Key advantages

• Reduces differential movement for crisper throttle response and fewer clunks
• Helps tame wheel hop for cleaner launches and more predictable grip
• Polyurethane construction resists oil, salt and heat for long-term durability
• Insert-style design fits into the OE mount for quick, non-invasive installation
• Road-friendly upgrade that tightens the chassis without excessive NVH

Fitment

Compatible with BMW 4 Series F3x platform:

• F32 Coupe
• F33 Convertible
• F36 Gran Coupe

Product details

• Pack quantity: 2 inserts
• Diagram position: 27
• Material: performance polyurethane
• Function: fills cavities in the original rubber mount to limit deflection under load
• OE cross-reference: 33316792513

What you will notice

• More stable rear axle under acceleration and on uneven surfaces
• Smoother, more consistent power delivery with reduced drivetrain lash
• Enhanced steering and chassis feedback that inspires confidence

Installation and support

Professional fitting recommended. MJ Modifications offers expert installation in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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Give your BMW 4 Series the tight, precise feel it deserves with this proven polyurethane differential mount insert upgrade. Order now for a quick, high-value improvement you will feel on every drive.