Powerflex Rear Anti-Roll Bar Mounting Bushes 22.5 mm for BMW E46 M3, M3 CSL and Z4M - Part Number PFR5-4609-22.5
Upgrade your BMW suspension with Powerflex poly bushes. This rear anti-roll bar mounting bush kit is the go-to performance suspension upgrade for the E46 M3, M3 CSL and Z4M when fitted with a 22.5 mm rear ARB. Powerflex polyurethane bushes reduce unwanted suspension flex, sharpen handling, improve stability and deliver consistent alignment for better grip and tyre life. Ideal for fast road driving, track day preparation and restoring precision to ageing cars.
We run Powerflex bushes on our own cars and our customers consistently praise the tighter rear-end feel, reduced body roll and improved steering response. If you want a durable, fit-and-forget solution with real-world handling gains, this is it.
Key features and benefits
- Direct replacement rear anti-roll bar mounting bushes 22.5 mm for BMW E46 M3, M3 CSL and BMW Z4M
- High-performance polyurethane reduces flex compared to factory rubber bushes
- Sharper turn-in, improved mid-corner stability and braking stability
- Better tyre contact with the road and prolonged tyre life
- Resistant to oil, road grime, salts and temperature for long-term durability
- Lifetime Warranty from Powerflex
Fitment details
- Vehicle compatibility: BMW E46 3 Series M3 including CSL, BMW Z4M
- Rear anti-roll bar diameter: 22.5 mm. Please measure your ARB to confirm before ordering
- Pack contents: 2 bushes
- Diagram reference: 4
- Part number: PFR5-4609-22.5
- BMW reference: 33552282682
Why choose Powerflex poly bushes
Powerflex suspension bushes are engineered to control suspension geometry under load. By limiting unwanted movement at the rear roll bar mounts, these bushes keep the anti-roll bar working effectively, reduce body roll and maintain consistent alignment. The result is improved handling, better feedback and confidence on B-roads and track. Compared to ageing rubber, polyurethane maintains performance for longer while keeping noise, vibration and harshness in check.
Common search terms
Powerflex rear anti roll bar bushes 22.5 mm, E46 M3 rear ARB bushes, E46 M3 rear sway bar bushing, rear stabiliser bar bushes 22.5 mm, BMW M3 rear roll bar mounting bush, Powerflex PFR5-4609-22.5, E46 M3 CSL rear anti roll bar bush, Z4M rear sway bar bush, BMW E46 suspension bushes, polyurethane bushes BMW M3.
Fitting and support
Professional fitting available at Nforcd in Warwickshire. Email Sales@nforcd.com for a fitting quote or advice. We are happy to help you confirm ARB size and compatibility before purchase.