i'm getting a tuner chip. the issue is which one? anyone using one? any suggestions on a brand?

 

There are a lot of options available to you depending on what you want. Do you have any other mods done to support it or bone stock? I believe we have numerous threads on folks experiences with different tuners, where they got it, how much spent, how the truck performed after, ect ect.....

But I can tell you that it will make a nice difference in the truck esp in throttle response....

 

here's some reading for you. lots of hints/tips
https://www.f150forum.com/search.php?searchid=526045