Powerflex PFF5-4650 Polyurethane Engine/Motor Mount Bush Kit for BMW M3 E90 E92 E93 (S65) & BMW Z4/Z4M E85 E86 - Adjustable Tuneable Fast Road/Track Uprated Engine Support/Torque Mount Bushing OEM Replacement Upgrade

PFF5-4650 Performance Motor Mount Bush Kit for BMW M3 E90 E92 E93 and BMW Z4 E85 E86 Z4M

Want tighter drivetrain control, cleaner shifts and stronger throttle response from your BMW without the soggy feel of ageing rubber mounts? The Powerflex PFF5-4650 is a direct-fit, adjustable motor mount solution that transforms precision on spirited road use and track days while remaining practical for daily driving. Replace tired factory bushes with a durable poly bush set that resists oil, heat and time, keeping your powertrain located exactly where it should be under hard acceleration, braking and cornering.

Why enthusiasts choose PFF5-4650

• Adjustable compliance with tuning pins so you can set the firmness and NVH to suit road, fast-road or circuit use
• Just under 200% stiffer than stock at 5 mm compression for significantly reduced engine rock
• With all four pins installed it is just under 300% stiffer than standard for maximum control
• Poly bush construction resists oil contamination and heat for long-term consistency
• Retains OE geometry while delivering sharper response and improved gear change feel

Vehicle applications

• BMW M3 E90 E91 E92 E93 including GTS and Convertible, 2005 to 2013
• BMW Z4 E85 E86, 2006 to 2009
• BMW Z4M E85 E86, 2006 to 2009

Not recommended for diesel models due to increased NVH.

OEM cross references

• 22111095444
• 22116779970
• 22116771361
• 11811092583
• 11812283798
• 11817837985
• 11812228298
• 11811136542

Performance detail

Load vs movement testing shows clear benefits at 5 mm compression. Baseline configuration delivers just under 200% stiffness over the factory item, and installing all four adjuster pins takes this to just under 300% for those who prioritise maximum drivetrain restraint for track work and competition.

What is included

• 2 bushes (you will require 2 bushes per car)

Part number

PFF5-4650

Proven on our cars and our customers' cars

We have installed this Powerflex motor mount kit on our own fleet and customer vehicles with consistently excellent feedback. Drivers report noticeably better shift precision, reduced driveline shunt and repeatable performance lap after lap. A superb upgrade for anyone seeking a more connected feel without the maintenance headache of soft rubber.

Professional installation

Prefer us to fit it for you? Book with MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

Fitment check before dispatch

Enter your UK registration or the last 7 characters of your VIN at checkout and we will confirm compatibility prior to shipping.

Diagram

Diagram No. 50

Installation guide

Search terms to help you find the right part

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