Contour-Master feederhouse with reverser and high-torque variable speed drive system, 80mm lift cylinders, premium header control package, deep tooth adjustable chaffer and bottom sieve, high capacity unload, 22.5 ft auger, heavy-duty final drive and heavy duty hydrostatic system, 20.8R42 duals for use in 30" rows, adjustable rear axle with heavy-duty spindles, power adjust mirrors, side hill performance package