[jerbear]

I have 04 svt focus with Jackson Racing supercharger with BBk. I just bought a over drive pulley for it and was wondering if anyone is running this set up and if so did you get a tune with your over drive pulley or did you just install it and go?

 

[RhodySVT]

You'd need to tune a new fuel map for the higher boost levels. Failure to do so would be very bad.