i have found a really nice 2555 john deere that has 2,400 hours. It has a cab, Hi low trans, loader, everything. It is all original and has been barn kept its whole life. But my problem is I was looking for a 2755 because I needed the extra 10 horsepower. My understanding is the 2555 and 2755 use the same exact engine and turbo, what could be done to the 2555 to squeeze 10 more horsepower out of it?