i have installed and tune pesona campro auto trans with no major modification... what the customer gain was a better drivability, improve fuel consumption approximately bout 10% and smooth acceleration till 6000k rpm better then before... it was done on the road tuning which is the driver will drive himself to give feedback whether it is better or worst while tuning...
in my experience in tuning scene, a NA car with minor modification, gain in hp is not more than 5hp... what matter most is the improve in drivibility and fuel consumption...
in my experience in tuning scene, a NA car with minor modification, gain in hp is not more than 5hp... what matter most is the improve in drivibility and fuel consumption...