[hajii]

ok, here's one that should be fairly easy to answer; I have a 2005 F150, and I was wondering if I do the Gotts mod, will I need a custom tune? I know that some of the 04's & '05's came with a lean fuel table & wanted to get confirmation on this before I drop the hammer on this. I also have a flow 40 SIDO with 2 1/2 pipes.

Thanks,

Dave