The Mugen ECU is worthless, and it's very hard to hit 200 hp without VTEC. Not to mention that this very professional-sounding shop didn't mention anything about cams, which will gain you the most power of any single mod.

Now with super-lumpy cams that will make your car idle like a Harley, 12:1 CR, good head work, opened up intake and exhaust you'll probably hit 170 to the wheels tops after a couple dyno pulls and some tuning of the fuel mixture. If you were to convert that to flywheel hp that'd be just about 200, as stock ITRs which are rated at 195 hp tend to put 165 to the wheels. I would be wary of any shop that tells you crank hp figures just to make it sound better.