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      07-09-2007, 02:39 PM   #26
bullitt5897
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For the M5 they have already made 50rwhp more horses out of an ECU tune along with headers and cams and exhaust. I am talking BHP not RWHP. to get 500 rwhp would be about 550-575bhp which would be crazy!

About the ECU, we dont know all the details about the new system but I wouldnt believe it would be too far off from the M5 & M6 software. alot of what we are saying is pure speculation and theory. Only time will tell what will be possible. If we still disagree then to each his own