In this area of indiana 2.5 is workstock. And what your going to find is with all the 2.8 trucks that came down to 2.6 it's going to run a lot of 2.6 truck down to 2.5. And unless its a Bigtime 3.0 truck (haisley's ect.) 3.0 trucks are even getting beat by some 2.6 trucks. a non hanging weight, 1" travel, air to air, past the cab exhaust, 2.5 class is needed. Are "built" trucks going to run in it? Yes. First time a trailer queen was in the 2.5/workstock class? No. And yes some will say "Well you should just pay the money to keep up in 2.6" Well i know for a fact you have 25K motors in the 2.6 class. SO with that being said i honestly believe the 2.6 class isnt going to be for your everyday kind of guy, where a 2.5 class could still be that. Dual Pumps on a common rail is no big deal, Ag govs are. Protrusion is needed, just go talk to adam hallien who went and put 20+ feet everynight on some REAL stout ohio 2.6 trucks last summer. So all of you who dont feel like protrusion is needed just want to be able to run your s475 with a 2.5 plug and run it. Thats all great but defeats the purpose of having a 2.5 class and trying to limit the power doesnt it? Besides at the end of the day your going to want that protrusion to stop some built 2.6 trucks from literally buying a cheap cheap plug and coming down. And no 2.6 did not get this way because of allowing dual pumps, 2.6 got this way because it got used for the wrong purposes....2.6 was a solution to the worstock problem of teching 50 differnt turbos, to try and even the playing field, it wasnt designed for solving the "2.8 problem" Which was bogus anyway, so much for class seperation.....In my opinion its a good class that will need policed heavily or guys are right it will be just another class out of hand,