i saw a conversation earlier where u can get 430 whp out of a rb26dett skyline with aftermarket exhaust,filter and computer upgrade.i live in the bahamas and i just ordered a 1990 gtr from japan,waiting on it to reach here.car already has exhaust and filter,what i want to know is what is the easiest way to get my computer work done and where,also about how whp does it have as is.HELP PLEASE.also if i upgrade to 2530 turbos can i use same upgraded computer.