Poly bushes - which make a big difference?

Beesza

Member
Derbyshire
Evening all,

I will be changing the suspension on my Z4C for new coilovers. Whilst I’m in there, I think I may as well change the RTAB’s for poly bushes. Are there any other bushes that could be replaces for a noticeable improvement in handling?

The car is typically a weekend toy. I’ve done several track days in it now and plan to do more this summer. I have no particular problems with the handling right now other than it being a tad understeer’y. I expect coilovers will help and I intend to move to a square wheel setup in due course.

I’ve already fitted Meyle HD front wishbones with poly bushes. Noticeably sharper turn in.

Keen to hear what people have changed and recommend.

(I know there is much debate re: RTAB poly vs OEM with limiters. I don’t have a press or bushing tools so I expect cost of these plus OEM bush plus limiters would far exceed the cost of poly bush alone.)
 
I replaced suspension with H&R springs and Konis, and at the same time replaced most bushings with poly except for RTABs and rear subframe. Also refreshed steering control arms.

Transformational. Prefer to my E46 M3 'vert.
 
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