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      12-04-2013, 11:39 AM   #4
RPiM5
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Drives: Mexico Blue F10 M5(Mika)
Join Date: Apr 2012
Location: Sunny San Diego

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I was waiting for someone to do the Switzer Tune with Catless Downpipes. 633whp is right around the 730 crank horsepower range. Fabulous. I wonder if one will get the same results with the JB Tune and a Catless Downpipe setup. There's that dude with the JB Tuned F13 M6 posting over on M5Board videos of him beating sportbikes on the highway. Lol!
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