I know the ole rule of thumb.........3 upgrades and you need a new ECU............but I don't know if that's a wive's tale or what...........

With these mods what do you think..........just had the engine rebuilt which added the street port (RB template) and APEXI intake............

Total mods engine wise......... street port (mild I suppose), APEXI intakes, downpipe, RB dual tip catback, and 9.5 flywheel.

Also, if I DO need an ECU, how do I go about getting one for these mods specifically..........I don't know any "tuners" in the area, so is there a way of ordering one off the shelf?

Also, with my stock ECU, once I break in this engine, what symptoms should I look for that would tell me I NEED one................my mechanic said detonation sounds like someone takes a coffee can half full of nails and gives it a hard shake............he said if you hear that don't put your foot in it again, assuming you don't pop your engine on the first go round.............

Thanks in advance...........

David