Ok I have 2003 dodge ram 4x4 2500 with the following mods... 5 inch exhaust turbo back, k&n fipk, bullydog 130 hp, TST, dynomite diesel 90 hp injectors, and I will soon be buying a glacier kit, and Turbo... . I tow occasionally 15k trailer... I have read many posts on the htt, and II turbos. . I would like to get input from people that have experience with either or both of these turbos. . If you are a dealer and would like to shoot me quote via pm feel free... ... Thanks Wes :-laf