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S4 overboost & chip upgrades

Hi Guys,

I spoke with Joe Hoppen earlier about ECU mods for my S4, but I'm still
a little confused about the overboost mode on the S4.  He seemed to think
the 227 HP DID NOT reflect the overboost.  If that's the case, what is the 
max HP during overboost?  He said normal boost was 2.15 bar (absolute), but
he didn't know the figure for overboost.  His ECU mod increases HP to 270.


Dick Meyer
Applied Research Laboratory
State College, PA

(formerly) 1991 V8 5-speed (Rest in Peace)
1994 S4
1970 M-B Unimog U900