Not all OEM and aftermarket timing belts are designed to be used on highly tuned performance engines. The durability of the timing belt is greatly reduced with performance engines running at high RPM with aggressive camshafts, increased torque coming from the valve springs, extreme heat conditions from larger turbos and more.
The gear facing fabric is made from Aramid fiber instead of standard Nylon to slightly increase the tensile strength. Everything is designed to make sure the camshafts are driven at the right valve timing even under severe conditions.
(Replaces part #151051)
