Here's a case where the gains in responsiveness are so improved that it's hard to believe you're driving the same car. Gains start as low as 2000 rpm and go all the way to a new redline of 6900. Peak flywheel horsepower gain is 9bhp. Torque below 4000 rpm is dramatically improved. 50 State Legal under C.A.R.B. E.O. #D-375-2. The ECU is normally found on the passenger side of the raintray between the windshield and hood. The ECU will have a sticker facing upwards, please copy down the number on the sticker.