Originally Posted by HDDP

LISTEN TO HIM GUYS... No Truer statement can be made about this issue ! Also, because the programming code is tightly held by MB and they only provide "basic maintenance tuning maps" to their aftermarket technicians. Also, because the OEM ECU software updates / changes often require two way communication with "big brothers's computers" it is very difficult to manilpulate the codes... I'm not saying it can't be done, because I know a programmer (Bosch ECU Tech) here in LA that can do it, but he charges $400 per hour and estimates that such a project would require multiple hours and multiple dyno runs with AFR logging... (appx. $2,500 worth of work) and he will not guarantee satisfactory results...

That is why I have scrapped my OEM ECU on the race car for the SRT6 engine swap and went with a MOTEC M600 system... It might be a little pricey ($4,500) without tuning, but it has the capability of handling any future modification I might put into the engine (eg. swapping the SC for TC, etc.)