i agree with buyimports allthough you'll see i have a gsr, when i originally bought the car i knew little to nothing about the differences, but i did know that an 01 gsr has leather and i can't stand not having leather seats in my car(as sad as that sounds). but really listen to schmoo he's been preaching the word of turbos for a long time and going with a turbo on your rs is the route i would go b/c vtec just adds another(i don't wanna say problem), but quirk if you will into the equation of turboing, besides your overall goals can be achieved by simply raising up the right amount of dollar signs no matter the original platform