I have a ka24de that was a bitch to time right. I have a 3 inch wide piping madrale bent exhaust system. IS that too wide and could be the problem why my car was a bitch too time? too much air flow, my car would also stall some times wheile I was driving it. Maybe too free of exhaust flow and not enought back pressure, it just kinda "huffed out"? the only other thing I have on my car is cold air intake.