ok.
there are basically a few options for you:
you can:
A)turbo
B)swap
C)supercharger
D)N/A
a) expect to pay somewhere between 2.5 and 4k getting everything running right and working correctly all problems included. power gains will be about +100horse +75torque possibly more depending on the parts used.
b)a swap is NOT ADVISABLE, you have a good engine and replacing it with a type-r would be a mistake. the GSR engine would have to be my B-series of choice for modification. stick with it.
c) expect to pay 2.5k-3.5k getting it up and running correctly. these kits will yeild varying ammounts of power from about 25-75 horse, but they are less effcient than a turbocharger, they are also less advisable due to them not taking to 4cylinders as well as other types of engines.
d) this is the pay-as-you-go method of modification. expect to pay out the @$$ for minimal gains. the power is always there, but to make the most of a N/A setup you will need a constant supply of race gas and some serious motor work.-- a suggested solution would be to use more agressive cams with stock jdm itr pistons. as well as a port and polish and some bolt ons- this will cost in the neighboorhood of 3k or more and expect power gains of 30-40 horse.