I am currently pondering what I should do next. I have basic bolt-ons and have advanced the timing on my Prelude. I would like to keep the internals stock and keep it reliable but I would like to squeeze a little more power out of her. I don't know if I should upgrade the ECU or not. I've also been looking at getting a new throttle body and intake manifold but I don't know where a good place to look for those is. It is hard to find stuff like that for the H23 motors. I've seen some OBX I/M on ebay for $175 but for that price, it raises questions about quality. Also, what size throttle body should I go with. I was thinking maybe 64-66MM. Sorry this was long but thanks for your opinions.