I have the d15b with the dual vtec on the head in my crx si. Its got 78mi on it scared to turbo. I have the motor running now perfectly, but obd0. I want the vtec, and more power. I was wanting 150. So just 20 more i want to know best obd to use, what ecu also. i have the obd2 ecu that came with it but i have a p28 ecu dizzy and intake if i wanted obd1 it, but would obd1 run the vtec correctly. And i was thinking about a skunk2 intake throttle body and hondata intake gasket would it be worth it im gonna take it to get tuned also if i do that. lol or should i just leave it the way it is. i got headers exhaust cam gears just stupid bolt ons that have virtually no hp effect.