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      07-05-2014, 09:09 AM   #14
FormulaMMM
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Drives: E90 M3
Join Date: Oct 2011
Location: Midwest

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Didn't you listen to videos before you installed to know what you were getting?

Power increase catless + tune is/should be noticeable. Not night and day, but definitely noticeable. Seat of the pants, dyno, and real world accel data.
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DCT E90 M3 (stock), M4 GTS, Camaro Z/28. Past: Akrapovic Evolution, KW Clubsport, Stoptech ST-40 + Pagid RS29 | Apex EC-7 18x10 ET25 + Nitto NT01 275 35 18, Velos Designwerks Tune, Megan Racing Catback, Macht Schnell Filter