Powerflex PFF5-4650 Adjustable Polyurethane Performance Engine Mount Bush Kit (Pair) for BMW E46 3 Series M3 (20002006) Fast Road/Track

Adjustable Poly Motor Mount Bush Kit for BMW E46 M3 2000 to 2006 – Powerflex PFF5-4650 (Pair)

Transform the way your E46 M3 drives with this adjustable polyurethane motor mount bush set from Powerflex. Supplied as a matched pair, PFF5-4650 replaces tired rubber with tunable poly bushes that clamp down on drivetrain movement for crisp response, tighter handling and dependable control on fast road and track days. We run these on our own cars and customer builds and the feedback is consistently excellent. If you want a durable, fit-and-forget upgrade with a lifetime warranty, this is the engine mounting solution your S54 deserves.

What you get and why it works

• Part number: PFF5-4650 – adjustable engine mounting bush kit, 2 bushes in the pack
• Tunable stiffness using supplied adjuster pins so you can set compliance for street, B-road or circuit use
• Just under 200 percent stiffer than OE rubber at 5 mm compression, just under 300 percent with all 4 pins installed
• High-performance polyurethane controls flex far better than ageing hydraulic rubber mounts
• Sharper steering feel, more consistent chassis balance and improved stability under braking and acceleration
• Helps maintain suspension geometry, promotes better tyre contact and confidence at the limit
• Backed by a lifetime warranty for long-term peace of mind

Fitment and compatibility

• BMW E46 3 Series M3 2000 to 2006 – S54 3.2
• Designed for the E46 M3 engine mounts
• Not recommended for diesel models
• Does not fit E46 xi or convertible models
• E90 fits M3 models only

Tech specifics

• Quantity: 2 bushes, diagram reference: 50
• Material: performance polyurethane with removable adjuster pins
• Use case: fast road, track day, performance driving

Real-world gains

By reducing excess engine rock, these uprated motor mount bushes let the suspension and differential work as intended. Expect tighter drivetrain control, repeatable feedback through the wheel and a more planted M3 when pressing on. NVH control remains suitable for fast-road setups, while the adjustability gives you the freedom to dial in extra firmness for track work when you need it.

OE cross-reference numbers

22111095444, 22116779970, 2211677136111811092583, 11812283798, 1181783798511812228298, 11811136542

Trusted upgrade, proven by us

We have fitted PFF5-4650 on in-house builds and many customer E46 M3s with superb results. Owners report noticeably reduced drivetrain slop, better stability over rough surfaces and a more precise feel during hard cornering and braking, with the resilience you expect from Powerflex.

Professional installation

Prefer a specialist to fit these? Book with MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

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