Originally Posted by Ransom
I have an '07 Spec B so the up-pipe is not an issue. Wouldn't throwing the stock DP back on with the stage 2 tune still in place be a problem? I mean they really push the car on those dynos last I saw and the tune wouldn't account for that terrible bottleneck, would it? Don't want to hurt my baby
You can run your stage 2 tune and stock DP just to pass smog just don't get into boost and switch the DP back after. Someone here is CA did this no problem.