I've been trying to read up on Flyin' Ryan Performances' SCT tunes. I have a completely stock 4.7 H.O. in my Jeep and I'm wondering if a tune would be worth doing? The only other mod I'm considering, performance wise, is one of Flyin' Ryan's ported throttle bodies. Don't get me wrong, I love the way my Jeep drives but I can't leave any car that I own alone . Also, my reason for doing a tune is to get better performance, but more so for better gas mileage as it is my daily and I drive a lot.