Might be a dumb question
 

i plan on getting a Roush cold airintake an their offroad exhaust for what i have read i would not have to flash the computer
i plan og getting the programer 1st the cold air lastly exhaust i would put this down on the order fourm but would this effect the programs or no
thanks for any help

The exhaust can be done at any time. If it is cat back.
The cai I would hold off installing until you get the custom tunes. 04-05 f150 5.4's had problems with running lean from the factory.
Or put the cai on and run it on level 2 until the customs come.
Your truck is a 08? Right?

Lars

yes its a 08 5.4 L