I believe all the trucks have sodium filled exhaust valves for towing. Just about every article I have read said Ford did not do the Boss engine a favor with the Boss Intake.
Every test I've read shows the BOSS intake giving up what looks like too much low/mid for a small gain at the tippy top where it won't get much use outside of the track. So unless you are tracking the car seriously, you're better off with the regular intake.