As the intended usage of a vehicle changes, the suitability of the parts fitted also changes. People go from good road tyres to track tyres, better pads and discs to larger discs and caliper conversions and better springs to full-on adjustable coilover upgrades… all in the search of better performance on track.
For suspension bushes it’s no different; however, many track day vehicles, whilst having had all these mods carried out, still have standard Powerflex Road Series bushes fitted. Powerflex now offers a more suitable and better-performing alternative for BMW E46 models (including the M3) and the Z4 (E85/E86 models).
The Powerflex PFF5-5601GFront Wishbone Rear Bush is a 2-piece design featuring a low friction polyurethane inner bush, forming a bearing surface between the CNC machined aluminium outer shell, that offers minimal deflection and maximum performance. This results in an increase in stiffness of up to 128% compared with the original rubber bush.
There are three alternatives:
PFF5-5601G Front Wishbone Rear Bush, Caster Adjust fits into original mounting brackets with a 66mm diameter, bracket and bush part number: 31126783376. Retail price: £143.88 per pair.
PFF5-5601G-60 Front Wishbone Rear Bush, Caster Adjust totally replaces the original bush in all vehicles with a 60mm diameter mounting bracket except M3. Retail price: £143.88 per pair.
PFF5-5601GM3 Front Wishbone Rear Bush, Caster Adjust replaces original bush part number: 31122229857 found in M3 vehicles and fits into original mounting bracket part numbers: 31122229623, and 31122229624.Retail price: £143.88 per pair. All prices include VAT.
These parts all have the same caster offset found in Z4M vehicles providing an additional 0.5° offset over the original concentric bushes found in the E46.
All Powerflex bushes, of course, carry a Lifetime Warranty.
For more details visit www.powerflex.co.uk or call 01895 460033.