Hi guys i am in the process of getting rid of my 08 Ex.cab long bed 6.4 , and am looking at getting back into a 7.3 . this time i think i want to get a CCSB . Before the 08 I had a 01 Excab short bed with DP tunes intake and 4" exhaust and was very happy with it but i was lulled into the 6.4 by claimes of nearly 600 hp and 18 mpg. , It's a great truck but the mileage sucks . the best i could get out of it was 15.5 in the summer and now with winter blend it's more like 14 all like driving like grampa jones (No fun !!) . The 7.3 usually did 17+ in the summer and never below 15 in the winter . I realize the CCSB will weigh a little more than the Xcab sb that i had but would lke to hear what kind of milege you guys are gettin . my plans will be 285/75/16 hankook tires and mods will be tunes , turbo and mabey a set of 238's and a RR return . BTW the 08 has a DPF delete and am running KEM tunes on my Mini Maxx .