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Quite a bit of work has been done over on E90 post working out the M3 suspensions. Depending on your $$ threshold you can convert most all of the 135/335 suspension over to the M suspension. That said the M3 Dampeners/Springs are not the end all be all. Plenty of options out there which could outperform stock m bits. Just visit the M forum and read for yourself.
The real question should be why? For the E9X it's about the difference between normally aspirated and forced induction. With the 1m it seems a no brainier. You want m performance then get a 1m, it will be cheaper.
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