I'm looking into doing an ECU flash on my '98 S70 T5M. I know the obvious choices are IPD or ARD. I'm sorta leaning toward ARD at this point. Sorta looking to gather info at this point. If anyone has either of these tunes particularly the ARD Orange or Green tunes I'd be interested in hearing about your experience with them. Also info on the mods required other than the obvious intake, exhaust, etc would be appreciated...