I have an 03 touring with JWT pop, strup ts, HKS ti, and Kinetix V5 plenum. Have have followed procedures of ECU resets, but once in a blue moon my car would run like crap even with my AFC set at -4 across the board. Now, with technosquare ECU, would the ECU tune solve the lean/rich problem? I know i need to dyno my car in order to have an accurate read out of my AF ratio.

 

an ECU reflash by Technosquare, especially if you stop by to have them tune it for your car, .... will allow your car to perform Much better than with the AFCrap.