Need info on looking to increase towing power and fuel mileage with a chip. I have a 2006 F-350 with a 6.0 powerstroke. Which chip is the best for the money

You need an SCT from innovativediesel.com with some custom tunes on it. They are the best out there for 6.0s by far.

bullydog just released some new units for the 6.0..check out the news article on http://www.fordtruckspace.com