Wharbo Precision Manufacturing co.,ltd
MMX Billet Rear Subframe Bush Insert Kit, Cradle Inserts for BMW F2x F3x 1 2 3 4 Series (F20 F21 F22 F23 F30 F31 F32 F33 F34 F36)
MMX Billet Rear Subframe Bush Insert Kit, Cradle Inserts for BMW F2x F3x 1 2 3 4 Series (F20 F21 F22 F23 F30 F31 F32 F33 F34 F36)
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Transform rear-end stability and handling precision on your F-Series BMW with this precision-machined rear cradle bush insert upgrade. Developed for the F2x and F3x platforms, it controls cradle deflection at the stock mounting points to keep camber and toe consistent under load. The result is a tighter, more planted feel through fast bends, cleaner power delivery out of corners and confidence-inspiring stability on B-roads and track days.
We’ve installed these on our own builds and for many customers, and the feedback is always the same: crisper response, better traction and a more connected chassis without the hassle of invasive modifications. It’s the smart, cost-effective way to unlock the true potential of your suspension.
Why choose this rear cradle insert kit
- Improves rear axle control by supporting the OE rubber bushes
- Helps maintain alignment under cornering, braking and acceleration
- Sharper turn-in and more predictable balance at speed
- Durable, precision-machined metal components built to last
- No permanent modifications required and fully removable
- Fast install with basic tools, typically completed in under an hour
Perfect for
- Fast-road and track-day cars wanting a stronger, more consistent rear end
- Pairing with performance tyres, coilovers and uprated anti-roll bars
- Drivers seeking a confident, connected feel without replacing all bushes
Vehicle compatibility
Designed for BMW F-Series F2x and F3x chassis, covering 1 Series and 2 Series (F20, F21, F22, F23) plus 3 Series and 4 Series (F30, F31, F32, F33, F34, F36).
Professional fitting
Want it installed by experts? Book your fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
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