Dude, I`m in sympathy with your thoughts, but unfortunately I don`t think they`ll use less fuel now, because once the cooling problem got fixed they could run more the engine up to 100% which btw.is the only positive aspect.mirkovladic wrote: ... Firstly less fuel, less weight better CoG. Then no hot blowing less heat in the exausts: less heat under the bonnet, better cooling, less gills->better aero. Better cooling will also come with the new exaust, as part of it will be outside, which less hot exhaust under the bonnet (I think the inner part can be shorter with a RB exhaust)...
So more fuel and more heat ... not to mention that more fuel means higher CoG ...