my wifes boss just bought an 07 250 6.0 50k on the clock because he has a HUGE boat. i was talking to him and hes thinkin about doin something to try to gain a little more power and economy. said he is only getting around 13 mpg, i recomended a fresh oil change, fuel filter and air filter to start. i dont know anything about the 6.0 but i know on my 7.3 there are alot of easy DIY mods that can be done. can the 6637 be put on the 6.0? what about a chip? straight pipe or possibly a quiet higher flow muffler? any help would be appreciated!! i wanna get him hooked!!!!