[Integra-F20C]

well dude...I think it's better u stay with ur GSR and work on it..cause if u get a RSX-S now..there won't be as much parts for now since it's still a new car..and even if there is a lot.they would cost a lot for now..so stick with ur B18C..yea u can work on ur car with better ahdnling by getting spoon sport sway bars..susension etc if u want real good traction..and yea..if u turbo it..not many cars can beat ya..
u can run under ur internal settings with a T7 or T20 ball bearing turbo..which is better for daily dirving at about 0.7bar boost...and internal settings i mean factory pistons..ecu..etc.

so yea..as far as JRSC..in there web page and from a video i have about it...they said it'll increase 40% of ur power..i'm nto sure how many psi's...but they dynoed a civic with i/h/e and cam gear and msd igition and blah blah..and got 138kw to the wheels..and after they fitted the JRSC.they had 167kw to the wheels..amazing huh?..so something for u to think abt..JRSC is much more easier to maintain..since it just replaced ur intake manifold and throttle body..
while turbo..needs more maintance..