BMW E46 & Z4 front wishbone rear bush PFF5-5601G, 66mm, +0.5° caster

Powerflex PFF5-5601G front wishbone rear bushes for BMW E46 (3 Series, Touring) and Z4 (2002-2008). Fits the 66mm aluminium housing only.

What they do: +0.5° caster offset for sharper turn-in, improved self-centring and straight-line stability. 128% stiffer than OE rubber; up to 190% with Black Series compound.

• Hard-anodised aluminium shell + low-friction polyurethane centre
• No binding, minimal NVH increase over stock
• Lifetime warranty - no guesswork, no compromises

Fast road or track day fitment. Not for daily drivers who prioritise plushness over precision.