further details addressed. When I purchased the car I was told that the castor/thrust arms needed replacing so straight away I did some research and had options of OEM, m3 or superpro adjustable. I decided to go down the superpro route as I like the adjustability. However due to conflicts in Turkey it meant it was impossible to have any goods come from there (5 months later still nothing). So my money was refunded and I went with a temporary remedy of some immaculate e82 front control arms. To my surprise the bushings are slightly different.
Here are some pics of the differences (left e82 LCi 135i, right e87 130i), arms themselves are the same.
enormous difference on center feel which is now more confidence inspiring
