Millway Motorsport Solid Delrin Acetal Rear Differential Mount Bushes/Bushings (Final Drive) for BMW 1 Series E81 E82 E87 E88 & 3 Series E90 E91 E92 E93 E8x/E9x - Hard Mount Diff Carrier/Subframe Bush Kit - Track, Drift, Fast Road

Solid rear final drive mount bushes for BMW E8x and E9x platforms

Transform the way your BMW puts power to tarmac with Millway Motorsport’s solid acetal rear final drive mounts. This hard-mount kit locks the rear unit to the axle carrier for a sharper, more connected driveline and repeatable performance lap after lap and mile after mile.

If you are fed up of squishy factory rubber and the vague, delayed response it creates, this is the upgrade. We have installed and used this kit at MJ Modifications and our customers consistently report crisper throttle application, cleaner shifts, better traction on corner exit and far less diff wind-up. It is a must-have for fast-road, track-day and time-attack builds on E8x and E9x chassis.

Why this upgrade works

• CNC-machined Delrin acetal bushes deliver a rigid, precise location of the rear final drive on the subframe
• Reduces driveline shunt, wheel hop and pinion angle change under load for consistent grip
• Improves on-off throttle stability and makes power delivery feel immediate
• Heat, oil and corrosion resistant material for long-term reliability
• Direct-fit replacements for the original rubber pieces with no extra parts required

Note: As with any solid mount solution, a modest increase in NVH may be present. Performance, precision and durability are the priority with this kit.

Vehicle compatibility

• BMW 1 Series: E81, E82, E87, E88
• BMW 3 Series: E90, E91, E92, E93

For E82 1M and E9x M3 please see the dedicated listing for those models.

What is included

• Complete rear final drive bush set for one vehicle
• Supplied as a matched kit ready for installation

Who is it for

Owners aiming for a taut rear end and direct feedback on E8x and E9x cars used for spirited road driving, club motorsport, drift, hillclimb or track work.

Fitting service

Professional installation recommended. MJ Modifications are based in Warwickshire and can supply and fit this kit. Request a quote at info@mjmodifications.co.uk.

Search terms customers use

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