u/AutisticTortle

Exactly as the title says, i currently run Stage 3 from N75, I have all of the mods. And a catless downpipe. I live in NY, extremely strict emissions laws, but I get around them with my catless converter so that’s not an issue I worry about.
But would changing to a hood dump off the turbo fuck with the tune? I do not have an EK1 to data log or know how to use one, I sent my ECU to N75 and they flashed it a year ago-No problems.
I will also be welding in a bung for the 02 sensor still.