trust me. i had multiple people standing around listening for detonation and there was none.......except for the 3rd run where i tried for 19psi. and i know what you all are gonna say "you can't hear knock at higher rpm's and what not". the simple fact is that YOU and others are calling bs.....when the proof is in the pudding. i can understand you guys calling me out IF there wasn't a dyno graph to back it up. but there was, and there where roughly 80 cars there today, with multiple reputable tuners and they have all ran at all 3 local dynos and said that this one is very comparable to the rest in town. so i'm still uncertain on what there is to call BS on?