Powerflex PFR5-4615G Adjustable Rear Lower Control Arm Kit with Polyurethane Bushes, Rear Camber Adjustment for BMW Z4M E85/E86 (2006-2009)

Part Number: PFR5-4615G

Vehicle: BMW Z4 M E85 and E86, 2006 to 2009, rear axle fitment

Diagram ref: 19

Quantity of bushes supplied: 1

Transform rear-end grip and alignment control on your Z4 M

Give your E85 or E86 Z4 M Roadster or Coupe the rear-end precision it deserves. This Powerflex adjustable lower arm with uprated polyurethane bushing allows in situ camber correction from +1.0 to -3.0 degrees, so you can pull back excessive negative camber on lowered cars, fine tune for fast-road driving, or set a confident track day geometry. It is a direct, bolt-on replacement for the factory rear lower wishbone assembly and OE rubber insert, delivering tighter chassis response without the harshness and short service life associated with rose joints.

Why this adjustable rear arm is a must-have

• Camber range of +1.0 to -3.0 degrees for proper contact patch and even tyre wear
• Powerflex polyurethane bushing for crisp handling feel and long-term durability
• Ideal for spirited road use and circuit work, with excellent NVH control
• Simple, reversible, bolt-on installation to the rear suspension
• Backed by the Powerflex Lifetime Warranty

Real-world benefits you will feel

• Sharper turn-in and better mid-corner stability
• Reduced tramlining and more predictable braking behaviour
• Corrects the common Z4 M lowered-car camber problem
• Helps protect expensive rear tyres by improving alignment

We have fitted it and customers love it

We run this setup on customer Z4 M builds and the feedback is consistently positive. Owners report calmer high-speed stability, more confidence on B-roads and track days, and noticeably improved rear tyre life after a proper alignment.

OE cross-references

• Arm: 33326770813
• Bushing: 33326770824

Only need a replacement insert for the original BMW arm. Choose PFR5-4616.

Professional fitting and alignment

For best results, have this arm installed and the geometry set by specialists. MJ Modifications in Warwickshire offer expert fitting and a four-wheel alignment service. Request a quote at info@mjmodifications.co.uk.

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