Thread: Q's on the gruppem intake for e46 m3
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Old 12-01-2002, 09:43 PM
bchan3 bchan3 is offline
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Join Date: Nov 2002
Location: seattle
Rides:03' M3
Posts: 10
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if you search the gruppem site it shows a dyno of it gaining 15.2 hp. i was thinking of getting it since ive heard only good things about it unlike the hamann one. heres the thread

http://www.gruppem.co.jp/inpo-2.htm
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