Now when you say "increase the car performance" - yes it does. Electrical performance. Whether that translates into speed/torque/power I don't know. It really depends on the age of the car, how good is the ground, etc.
Hello there ATR owners. I've been eyeing for this car for a while. Can any old timers here give me a few words upon checking a used ATR Turbo in the market before I own it.