I have a mild streetport, upgraded twins, intake, dp, cb, intercooler as power mods and have the power rc tuned for these. I'm running 14 psi. I just ordered a resonated midpipe because my cat is on ts way out. I asume I will have to add additional fuel for the midpipe. What should I do?

 

power fc i meant

 

First please PM me where you got your midpipe and how much.

I was just at KDR and i told him about getting a midpipe and tuning for it.

He told me you can tune for it with the commander, note where the boost creep occurs and tune for it there and it'll eliminate it. Hope this helps.

 

You can use someone's fuel map or modify yours.

If you are producing lets say 300 hp, and the estimated increase of power from the MP will be about 25HP. Then 25/300 = .083 or 8.3% increase.
Run some O2 tests to determine your current voltage or AFR levels. Increase your fuel by 8.3% and do the test again.