Powerflex PFR5-422P Rear Subframe Rear Mounting Bushes - BMW 1 Series F20 F21 (2011-2019) & 3 Series F30 F31 (2011-) Polyurethane Polybush Pair

PFR5-422P Rear Subframe Rear Mounting Bushes for BMW F20 F21 F30 F31

Transform the way your F2x and F3x chassis drives with these high quality rear crossmember mounts. PFR5-422P replaces tired factory rubber with performance polyurethane, tightening up the rear axle for crisper steering response, improved traction and consistent alignment under load. Ideal for fast road use and track days, these bushes give that planted, confidence inspiring feel without the slop that comes from worn OE components.

We run these on our own builds at MJ Modifications and fit them for customers every week. Feedback has been superb, with sharper turn in, better stability during hard acceleration and braking, and excellent durability in daily British conditions. Polyurethane construction resists oil, salt and debris for long service life with minimal increase in NVH compared with standard parts.

Why this upgrade

• Reduces rear cradle movement for precise rear end control
• Enhanced stability and grip through corners and over rough roads
• Keeps geometry true under power for reduced wheel hop and better tyre contact
• Direct replacement components for straightforward installation
• Built from performance polyurethane for wear resistance and consistency

Included

• 2 x rear subframe rear mounting bushes

Supplied as a pair. Two bushes required per vehicle.

Compatibility

• BMW 1 Series F20 F21 2011 to 2019
• BMW 3 Series F30 F31 2011 onwards

Part number

PFR5-422P

Replacement and alternatives

This is a full replacement mount. If you need insert kits for the original equipment housing, consider:

• PFR5-421 for OE bush 33316758260
• PFR5-1921 for OE bush 33316792510

Replaces OE references:

• 33312283383
• 33316758260
• 33316792510

Fitting

Professional installation recommended. MJ Modifications offers in-house fitting in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Download the manufacturer fitting guide: Powerflex install guide.

Compatibility check

We can verify fitment before dispatch. Add your UK registration or last 7 of your VIN at checkout and we will confirm suitability for your BMW.

Why buy from MJ Modifications

• Specialists in BMW chassis upgrades and suspension bushings
• Tried and tested on our own cars with consistently happy customers
• Genuine Powerflex parts with expert advice and support

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