Powerflex PFR5-1921 Rear Subframe/Cradle Bush Insert Kit (Pair) for BMW 2 Series F22 F23 Coupe/Convertible xDrive AWD – Rear Axle Carrier Void Inserts Polybush Handling Upgrade – Fits OE 33316792510

Powerflex PFR5-1921 Rear Axle Carrier Insert Kit for BMW 2 Series F22 F23 xDrive AWD

Tighten up the back end of your BMW 2 Series xDrive with this rear axle carrier insert kit. Powerflex part number PFR5-1921 is designed to locate inside the voids of the factory rubber mount at the rear position of the subframe, cutting unwanted movement and giving you crisper handling, better traction and a more planted, confidence inspiring drive on British roads.

Ideal as a fast road chassis upgrade, these polyurethane inserts reinforce the original bush rather than replacing it, so you gain control and stability without a full press-out job. Expect improved turn in, steadier geometry under acceleration and braking, and reduced wheel hop, all while maintaining day to day comfort.

Why this upgrade works

• Locks down the rear cradle to curb flex and tighten response through corners
• Improves traction and braking stability by keeping alignment consistent under load
• Helps tyres stay in contact with the tarmac for more grip and less scrub
• Polyurethane is resistant to oil, road grime and heat for long service life
• Balances performance with NVH control compared with tired OE rubber
• Backed by the Powerflex lifetime warranty for peace of mind

In the box

• 2 x rear axle carrier insert pieces
• Diagram reference: 21
• Powerflex part number: PFR5-1921

Fitment

BMW 2 Series F22 coupé and F23 convertible with xDrive all wheel drive. Rear subframe rear location only.

OE cross reference for identification only: 33316792510.

Real world results

We have fitted these inserts on customer cars and our own builds. Feedback is consistently positive, with owners reporting a more connected rear end, cleaner power delivery out of bends and a calmer car over rougher B roads.

Fitting and support

Professional installation recommended. For fitting at MJ Modifications in Warwickshire, request a quote: info@mjmodifications.co.uk.

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