Performance M
Powerflex PFR5-4613 Rear Subframe/Rear Axle Carrier Cradle Bush Insert Kit (Polyurethane, 2pc) for BMW E46 inc M3, Z4 E85/E86 & Z4M 2006-2009, X3 E83 – Polybush Mount Inserts | Handling/Wheel Hop Reduction | Performance Suspension
Powerflex PFR5-4613 Rear Subframe/Rear Axle Carrier Cradle Bush Insert Kit (Polyurethane, 2pc) for BMW E46 inc M3, Z4 E85/E86 & Z4M 2006-2009, X3 E83 – Polybush Mount Inserts | Handling/Wheel Hop Reduction | Performance Suspension
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 steering response with Powerflex PFR5-4613 rear subframe mount inserts. Precision polyurethane inserts that support the factory rear axle carrier bushes for BMW Z4M E85 and E86 2006 to 2009, and also suitable for BMW E46 including M3, all BMW Z4 variants and BMW X3.
Looking for tighter chassis control without the harshness of solid mounts? Powerflex PFR5-4613 inserts target the voids in the OE subframe bush, curbing unwanted movement so the rear axle stays located under load. The result is crisper turn-in, improved traction out of bends and more consistent alignment on fast road, track day and daily use cars.
Why enthusiasts choose PFR5-4613
- Controls subframe shift for predictable handling and confidence at speed
- Helps reduce wheel hop and drivetrain shunt for smoother power delivery
- Enhances braking stability and mid-corner composure on uneven tarmac
- Supports accurate rear geometry to help reduce uneven tyre wear
- High quality polyurethane resists oil, road grime and ageing far better than rubber
- Backed by the Powerflex Lifetime Warranty for long-term peace of mind
Fitment and applications
- BMW Z4M E85 E86 2006 to 2009
- BMW E46 including M3
- BMW Z4 E85 E86
- BMW X3 E83
Features at a glance
- Part number: PFR5-4613
- Pack quantity: 2 inserts
- Diagram reference: 11
- Designed to install into the cavities of the original rear subframe bushes
- Fast, reversible upgrade that complements performance springs, dampers and alignment
Proven on our cars and our customers’ builds
We run these inserts on our own BMW platforms and they are a customer favourite for tightening the rear end without excessive NVH. The upgrade delivers a noticeable improvement in composure, grip and steering feel, offering superb value for money on E46, Z4 and X3 models.
Fitting service
Professional installation recommended. MJ Modifications in Warwickshire can fit and align your car. Request a quote at info@mjmodifications.co.uk.
Search-friendly terms
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