Notice how they say "up to" 380 HP. There is NO WAY that youre going to extract 380 HP out of a stock Evo.
And every car is different. One tune that might work well on one car, may not work that great on another car. Also, you would be sending them your ECU, or would you be logging the ECU and emailing them that data??
06 GG Evo SE
I WANNA GO FAST