OK take it easy I've been busy/gone all weekend, don't worry the stage 2 chip is set for stock 450 injectors. I'm not completely dumb, just partly. I bought the 650 injectors a while after the stage 2 chip. I haven't done a boost leak test yet, so I guess I should try that. Oh and another observation it sounds like something is kind of rattling under the hood aroud the time the knock count really kicks up. Also I took the old knock sensor and hooked it up and just left it hanging there in the engine bay, and it still said it was knocking just as bad, maybe a little less, but not hardly noticeable. I don't really know if that helps any or not, but I thought it might be worth a try.