Tune changes to make after installing down pipes 3.5 EcoBoost

[kenny c]

I'm new to tuning Ford EcoBoost F-150's. I hear and read that tune modifications are required after installing down pipes from the turbos to the cat-back system. What changes need to be made? Can anyone provide a tune file for me to review? I have the same question regarding upgraded IAC's. Thanks in advance.

[Seishuku]

On my 2.3, with stock tune and installing just a catback, I was getting an overboost code.
So I would think at least that would need to be raised, but the 3.5 might be a bit different. I know the strategy is a bit different from the 2.3.

Realistically, I think the exhaust model (back pressure and temps) *should* get adjusted, so the ECU knows roughly where the EGTs are at... But I haven't done that yet and haven't found it causing any issues. Fueling and timing are still running safe, despite Ford warning to NEVER run even a CAI on a stock tune. :rolley-eyes:

[kenny c]

On my 2.3, with stock tune and installing just a catback, I was getting an overboost code.
So I would think at least that would need to be raised, but the 3.5 might be a bit different. I know the strategy is a bit different from the 2.3.

Realistically, I think the exhaust model (back pressure and temps) *should* get adjusted, so the ECU knows roughly where the EGTs are at... But I haven't done that yet and haven't found it causing any issues. Fueling and timing are still running safe, despite Ford warning to NEVER run even a CAI on a stock tune. :rolley-eyes:

Thanks for the info.