Precisely! Now, I'm not gonna go on a ledge and say its absolutely the problem, but there is no way the belt snapped on its own, we can rule that out entirely. These kevlar belts are indestructible unless something mechanically goes wrong.Tye is on to something here T. The way that belt split, I'd be looking at the tensioner possibly as the culprit. Either loose or seized, making the belt slide off the path. The only way they split longitudinally is by rubbing against the cam pulley ends. This means they went off track.