agreed if you have one not worth switching for the most part.. PC only controls 1 set of injectors.. while bazzaz controls both sets upper and lower. as far as power output based on that.. there was no difference.. Theresa's CBR have a PCv on it and put down 108. we switched to bazzaz (only to get the all in one FI/QS/TC) and after tuning now makes 109 (Dyno and temps different) so its negligible. in the End it ALWAYS comes down to tuning