by Athelstan » Sat May 22, 2021 11:36 am
Hi, I'm Spanish and I've been studying chiptuning on my own for a while, I have an E39 with an M3 American control unit with span correction, fuel rise from 4000rpm, ignition advance and hard cut at 7000rpm like an AK-47, you can see it on my instagram Athelstan_ink