This is a good thing. I think you guys are all overthinking things. Pretty cut and dry to me, you either have a turbo or you don't, and you run the corresponding class. Why anyone would ever want to run an N/A car against a Turbo is beyond me, and if I was a Yamaha owner I'd be stoked I'm not running against the Turbo cars. I don't see the gearbox as being the "game changer" everyone else does. You can shift... Great! When Yamaha throws a Turbo on it, they move in to the Turbo class, and until then they stay in the N/A class. You start splitting classes based on gearbox, what's next... Tire size? Anyone above 30" runs X class and anyone 30" and below runs Y class? Build your cars now that you have an answer and go race. To me this keeps a lot of race cars out there competitive and doesn't make them instantly obsolete. If I was just about anyone on this board I'd be on the phone to Prescott Valley buying a certain World Championship car at a bargain price knowing it just gained a few more years of dominance with this announcement, but that's just me...
And for the record, ECU's and exhaust should be open on the Turbo cars... Past that, everything is stock.