Powerflex Black Series Front Tension Strut/Control Arm Rear Polyurethane Bush Kit (Caster Adjustable) for BMW M3 E90 E92 E93 (E9x) 3 Series 2006-2013 - Radius/Compression Rod to Chassis Lollipop Bushes - PFF5-401GBLK

BMW M3 E90 E92 E93 Front Tension Strut Polyurethane Bushing Kit - Caster Adjustable - PFF5-401GBLK

Transform steering precision, braking stability and front axle grip on your E9x M3 with this caster-adjustable polyurethane bushing kit. Built in the ultra-stiff Black Series 95 Shore A compound with heavy-duty steel outer shells and an offset CNC-machined stainless sleeve, this upgrade keeps alignment true under load for consistent handling on fast road and circuit use.

We run these on our own builds and customers consistently report sharper turn-in, stronger mid-corner support and a more planted feel under hard braking. If you want geometry that stays put when you push, this is the bit that delivers.

Key performance gains

• On-car caster tuning up to approximately +/- 0.75 degrees for extra camber gain while cornering and a larger tyre contact patch
• Huge reduction in bush deflection for cleaner feedback and confidence at high speed
• Improved braking stability and anti-dive characteristics under heavy load
• 25 percent stiffer than the previous version and around 140 percent stiffer than tired OE rubber
• Steel outer shells for superior load distribution and long-term durability
• Offset stainless sleeve and supplied spanner for quick, precise adjustment

What is included

• Quantity: 2 bushes (complete pair for the front tension struts)
• Compound: Black Series 95A polyurethane, engineered for motorsport
• Hardware: Steel shells, CNC stainless adjustable sleeve, adjustment spanner

Fitment and reference

• Vehicle: BMW M3 E90, E92, E93 - 2006 to 2013
• Location: Front tension strut to chassis (often known as front control arm rear bush, lollipop or compression rod bush)
• Diagram reference: 1
• Replaces OE part numbers: 31120393540, 31126763719, 31102283579
• Part number: PFF5-401GBLK

Ideal for

• Track days, sprint, time attack and fast road setups
• Drivers wanting tighter alignment control, reduced geometry drift and crisper steering response

Fitting and setup

Professional installation and a proper four-wheel alignment are strongly recommended after fitment to maximise results. For hassle-free fitting, book with MJ Modifications in Warwickshire. Email us for a quote at info@mjmodifications.co.uk.

Why choose this upgrade

This caster-adjustable polyurethane bushing kit replaces compliant factory rubber with a motorsport-grade solution that keeps suspension geometry locked in under cornering, braking and kerb strikes. Expect more precise steering, better tyre utilisation and repeatable lap-after-lap performance without the harshness of solid mounts.

Search terms customers use for this item: BMW M3 E90 suspension upgrade, E92 front control arm rear bush, E93 wishbone rear bush, polyurethane lollipop bush, tension strut bushing kit, caster correction bushings, front axle handling upgrade, motorsport suspension bushes, track day bushes for E9x M3.