Powerflex BMW MIN F40 F44 F48 F56 Front Arm Front Bush Camber Adjustable

Adjustable Front Lower Control Arm Bush Kit – Polyurethane Upgrade for BMW and MINI (PFF5-1301G)

Transform steering feel, front-end grip and alignment control with this camber-adjustable polyurethane front wishbone bush kit. Designed for road and fast-road use, this upgrade reduces unwanted movement in the front lower arm, giving sharper turn-in, improved stability under braking and more consistent tyre contact for better traction and reduced tyre wear.

We run these bushes on our own builds and customer cars, and the feedback is consistently excellent: tighter steering, more confidence in corners and a noticeable improvement in overall chassis response.

Why choose this suspension bush kit

• Dial in extra negative camber for front axle geometry optimisation and improved cornering grip.
• Polyurethane construction minimises deflection compared with factory rubber components.
• Enhanced steering precision and feedback without harshness, ideal for daily driving and spirited B-road use.
• Helps reduce uneven tyre wear by keeping alignment more stable under load.
• Durable, long-lasting and cost-effective handling upgrade for BMW and MINI platforms listed below.

Part number

PFF5-1301G

Cross-reference OEM numbers

Direct replacement for the original front wishbone front bush position. Cross-references:

• 31126850398
• 31126879841 / 31126879842
• 31126879843 / 31126879844

Vehicle applications

Compatible with the following models using the relevant front lower arm platform:

• BMW 1 Series: F40 (2018 on), F52 Sedan (2017 on)
• BMW 2 Series: F44 Gran Coupe (2019 on), F45/F46 Active Tourer (2014 on)
• BMW X Series: X1 F48/F49 (2016 on), X2 F39 (2017 on)
• MINI: F54 Clubman Gen 2 (2015 on), F55/F56 Hatch Gen 3 (2014 on), F57 Cabriolet (2014 on), F60 Countryman Gen 2 (2017 on)

Search-friendly terms: adjustable front wishbone bush, front lower arm bushing kit, polyurethane bushes, camber adjustment bushings, caster/camber correction, handling upgrade, BMW F-series suspension, MINI F56 poly bush.

What’s in the box

• 2 x adjustable polyurethane bushes for the front lower control arm front position

You need two bushes per vehicle, one per side.

Results you can feel

• Sharper initial turn-in and more stable mid-corner balance
• More predictable braking behaviour and reduced tramlining
• Greater alignment stability for track days and fast-road setups
• Improved cost-effectiveness over time thanks to durable materials

Fitting and alignment

Professional installation and a proper alignment are highly recommended to make the most of the camber-adjustable design. For expert fitting, book in with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Compatibility check before dispatch

We verify fitment against your vehicle details prior to shipping. Please provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm the correct parts for your car.

Brand

Powerflex Road Series

Installation guide

Download the installation guide (PDF)

Diagram reference

Reference No. 1

Keywords for search

front wishbone bush kit, adjustable camber bushes, front control arm bushing, BMW F40 camber, BMW F44 suspension upgrade, BMW X1 F48 polybush, MINI F56 alignment upgrade, polyurethane suspension bushes, caster increase bush, track day geometry, fast road setup, reduce tyre wear, steering precision upgrade.