5 star tune

A good custom tune, like one from 5Star Tuning will greatly improve your transmission performance with quicker, firmer shifts and improved shift schedules and strategies. They will adjust their tunes to take advantage to any other mods that you have done with your rig.

I previously had a V-10 Excursion 4X4 4.30 gears. Awesome towing machine. Installed a 5 Star tuner with the towing tune. What difference. Tranny shifted better, and fuel economy improved about .5 miles per gallon across the board. The truck felt like it had lost about 500 lbs. Well worth the investment IMHO.

Here is a long thread covering the 5star over 5 years.
http://www.ford-trucks.com/forums/1031460-5-star-tune-update-on-the-v10-4.html

I can only refer to the rv tune. It does make a difference in the rv, calms the rpms shifts hold better. I do not have any exhaust intake changes but plan on a better exhaust as next upgrade.

With any tune there needs to be some upgrades such as intake and or exhaust but it all depends on what you want. In my PSD I have upgraded the exhaust but not the intake because it is capable of providing air flow up to about 450hp so no need to change. the exhaust will improve performance and make it easier to drive. I have installed Gibson exhausts on my tow vehicles cat back on the gasser, turbo back on the diesel.

It all depends on what you want, go to ford enthusiasts V10 forums and read up there for trucks and x's. Many do recommend him.

http://www.ford-trucks.com/forums/955188-the-5-star-mike-sticky-thread.html