Tony pretty much summed it all up... visit hondata's website, it'll prolly answer all the questions you have... I personally have a Stage 3 with the additional stuff to make it a stage4 hondata controlling my car... I baught my hondata a few years back though so thats the only reason I have a "stage" type unit... Hondata S200 would work perfect for anyones car...

As far as making extra power with Hondata, I'd say it's true in. My car was dyno'd this last winter running a pretty much standard base ITR map (a friend that tunes hondata burnt the base map and added a little fuel in area's he thought were common problem areas to make it a little more aggresive), AEM CAI and a Apexi World Sport exhaust. I made two base pulls on the dyno not tuning or changing a thing and the motor put down 184whp/124tq which is outstanding for a stock motor w/ Intake and Exhaust plus the hondata... Dunno what the average R dyno's at but I would thing between 170-180whp so the hondata must have helped out a little bit I would think.. Most importantly, with hondata you car runs like it should from the factory without the annoying CEL's...

Definately two thumbs up for Hondata