Quote Originally Posted by polar Bear View Post
Its a 4.2 turbo intercooled 2003 model.Three inch exhaust .Just want to get set up for towing mainly.
Fairly stock then. Do you have a copy of the dyno? Do you know if the timing was adjusted when they tuned it?

There are 2 options I think will work for you if I cant help point you in the right direction with your current setup.