E46Fanatics - View Single Post - The Authentic GruppeM Intake Explained
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Old 03-01-2009, 07:08 AM   #8
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Join Date: Feb 2009
Location: Warsaw, Poland
Posts: 133
My Ride: E53 3,0 Diesel 254HP
great description but it would be more helpful with real (not from manufacturer) dyno chart "before" and "after"
djenker is offline   Reply With Quote