Quote:
Originally Posted by brusk
I have an 08 135i that the dealer says they installed BMW Performance springs on when it was new. They are black and are definately stiffer than the stock sport springs. The only writing I can find on them is a tag that has D6 written on it in the front and the rears have an L3 painted on them.
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If they were performance springs they would be labelled T1 or T2.
D6 and L3 are the standard M-sport springs. This is confirmed on turner motorsports page.
http://www.turnermotorsport.com/p-16...kage-used.aspx