Sounds about right. I dynoed my M3 at Carbconn back in 2009 when I lived in Seattle. Stock with just Eisenmann muffler and drop in filter it put I believe 338whp and then with aftermarket Fabspeed high flow cats, Eisenmann, and filter it put down 362whp from what I remember. Definitely impressive numbers for the 1M!
2012 Audi R8 V10, 6MT, Suzuka Gray, Larini Clubsport exhaust, Klassen M52R, GMG springs, Satin Black badges
2012 Audi A6 3.0T Prestige, Moonlight Blue
2014 BMW 528i, Space Gray
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