OK, so there's some difference. But has anyone quantified it? Maybe the "big" difference is only 10hp, who knows. Chris '91 200q20v On Fri, 30 Nov 2001, copley one wrote: > I have (VERY) recently driven two unchipped 1995.5 S6's as well as my > MTM Stage I chipped version. > > Big difference, throughout the RPM range. > > Paul K >