I have a 05 f-150 with the 5.4l it some slight upgrades( cold air intake, throttle body spacer, accel ignition coils and the E3 spark plugs) it runs great but after i did all that i noticed theres like a little hesitation then it accelerates fast and i was looking at other forums and some people were suggesting the BBK throttle. What do u guys think i should do or is the stock throttle enough?

 

Do you have a tuner yet?

 

Not yet. I was kind of hoping to get rid of the hesitation before i keep adding things. Im starting to think that im going to have to deal with it. I've heard the edge tuner is the best for the 5.4l. What do u suggest??

 

Im also in the process of putting a catback exhaust system to try and help it breath better

 

Custom tunes based on your mods. Check with 5 Star. He should be able to help you out.