Originally Posted by climkt
i feel that based on your figures, gruppe m is more a visual CF mod and aural /sound mod rather than a true performance enhancement mod. i think it costs about 1000us dollars for the gruppe m here but the hp gains are not quite worth the financial sacrifice.
Thanks for the reply. $1000? Damn.
ASA supercharger? Did they come out already? I searched it and I don't find any supercharger for e90.