First of all, yes it's true, the cylinder head is backward, with the airbox, intake and throttle body (yes it's fuel-injected) residing in front of the engine and the exhaust passing out the back into a "tornado-style" header (think curly fry) and then into the traditional silencer. But there is a lot more to this engine. The cylinder is slanted rearward for improved mass centralization and straighter intake and exhaust ports. Another key change is that the cylinder is offset forward of the crank's center so that the connecting rod is vertical as combustion begins, thus reducing friction and maximizing power. Internal dimensions are changed, with a larger 97.0mm bore and shorter 60.8mm stroke; the compression ratio has been bumped to 12.5:1.