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Originally Posted by Real Deal
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Originally Posted by Boss330
I guess the DME of the S55 also will be encrypted like the S63TU DME is. That means tuners mostly will do tunes by piggybacks, which is what most tuners like AC Schnitzer, Hartge, Abt, MTM etc are doing on the current gen M5, RS6 etc.
Alpina has replaced the entire DME with their own DME on the B3, but Alpina isn't representative of BMW tuners (they aren't even considered a tuner) as they don't offer just tunes, but only complete cars.
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Piggy backs are fine, I had Jb4 for a long time but Cobb is just much easier. |
The only major problem here is the limp modes activated by hidden code in these new DMEs (check out the M5 board here), making even the piggyback somewhat ineffective.
As others have mentioned though, the M3/M4 has a much larger tuner base (due to the much larger crowd looking to tune), and I'm cautiously optimistic the tuners will figure this out as well.