Do you really need to ask this question? Stock D-series motors are not rated any higher than 127 hp......GSR is 170 hp and ITR is 205 hp, and they both have .2 liters more of displacement.
This is definetely the wrong site to ask an opinion like that from! We are here because we dont want to hop on the bandwagon and "swap in" power. We are here because we want to learn everything about our red-headed step child of a motor, and how to squeeze as much power as possible out of our D-series mills. If you want to learn how to make and build power and not just swap it, stick around!
Bandwagon jumpers go thatta way ---------->
http://www.honda-tech.com