Katech Engineering LLC. has been involved with the C5-R racing program since 1997. One of the first production product lines to stem from this partnership was the KAT-A4425 tensioner assembly. One of the most common issues in the C5-R racing program was throwing a belt on track. This is a hazard for all competitive drivers due to the sudden loss in power steering, charging, and cooling. This hazard was present in many sanctioned race series involving the LS engines. An OEM pulley is used with raised belt keepers to also reduce the belts ability from walking away from the belt centerline. Being the tried-and-true solution to Corvette belt issues, this product brings race-proven solutions to the streets for consumers worldwide. This product also works for all applications that have an LS-powered V8 engine.