Powerflex Poly Bushes Pack Track Front Radius Arm To Chassis Bushes - E81, E82, E87 & E88 1 Series (2004-2013) - PFF5-401GBLK

Part number: PFF5-401GBLK

Unlock sharper steering feel, improved high-speed stability and track-ready precision with this Powerflex Black Series front radius arm to body bush kit for BMW 1 Series E81, E82, E87 and E88 models from 2004 to 2013. Engineered in a stiff 95 Shore A polyurethane with steel outer shells and an offset, adjustable CNC-machined stainless-steel sleeve, this motorsport-grade upgrade is built for hard road use and relentless track days.

Designed to replace the tired factory rubber mounts, these performance bushes transform front-end response, deliver extra braking stability and allow on-car caster adjustment for optimised geometry. Expect greater camber gain in cornering, more confidence on turn-in and a planted feel under load.

Why enthusiasts choose this upgrade

• Motorsport compound 95A polyurethane for maximum chassis control
• Steel outer shells for superior load distribution and durability
• Offset, adjustable stainless-steel sleeve with supplied spanner for easy fine-tuning
• On-car caster adjustment up to +/- 0.75 degrees to dial in front-end geometry
• Approx. 25 percent stiffer than the previous design and about 140 percent stiffer than worn OEM rubber
• Noticeably crisper steering, better braking stability and increased cornering confidence

Ideal for

• Track day handling upgrades
• Fast-road suspension refresh
• BMW 1 Series owners seeking caster correction and sharper turn-in

Vehicle compatibility

BMW 1 Series E81, E82, E87, E88 2004 to 2013. Suitable for models across the range including performance variants within the E82 chassis.

Replaces factory part numbers

31120393540, 31126763719, 31102283579

What you receive

• 2 x Black Series front radius arm to chassis bushes
• Steel outer shells
• Adjustable CNC-machined stainless-steel sleeves
• Adjustment spanner

Technical details

• Compound: Black Series 95 Shore A polyurethane
• Adjustment range: +/- 0.75 degrees caster on car
• Diagram reference: 1
• Quantity in pack: 2

Real-world results

We use these bushes on our own builds and track cars, and our customers consistently report tighter steering, better mid-corner grip and a more stable brake phase. It is a proven, no-nonsense solution for anyone serious about handling.

Fitting and support

Professional installation and a four-wheel alignment are recommended after setting caster. For fitting, choose MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search-friendly terms

BMW 1 Series polyurethane suspension bushes, front control arm rear bush, wishbone rear mounting, caster adjustable bush kit, radius arm to body mount, handling upgrade, track day suspension, performance bushings E81 E82 E87 E88, Powerflex Black Series, camber gain, anti-dive stability, chassis bush upgrade 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013.

For track and motorsport use where maximum control of suspension geometry is required.