Adding 100WHP To My Locked ECU M4 | Custom JB4 Tune

Back with another banger! Had a week to play with the m4 before I sent the ECU off, so I added a custom file on JB4! Easily making 80-100whp over stock which is not bad considering the ECU is locked. This thing is moving already, can't wait til we do a real tune! Drop a thumbs up & subscribe to the channel :)

Видео Adding 100WHP To My Locked ECU M4 | Custom JB4 Tune канала Freshhkiicks