Wanting to clear my confusion a bit. ECU controls the ignition, rev limit, transient fueling etc. So a better ECU allow more space for a greater mods like horsepower, torque?
i recently change my rims 2 16" running on 195/50/16 tires but the problem is tat always kena the fender rear part more worst front part still acceptable when i made a U-turn n going over...