Edelbrock 15013 is a turbocharger turbine outlet stud kit designed to securely mount the outlet elbow to the turbine outlet. It includes five 1.75-inch long studs, five 8mm nuts, and five 8mm washers. These components are made of high-quality stainless steel for durability and corrosion resistance. The studs are hand-tightened into the turbine outlet, with the longer threads facing the turbine outlet. When attaching the turbocharger to the exhaust manifold and the turbo outlet elbow to the turbocharger, use an 8mm washer under each nut and hand-tighten the 8mm nuts onto the studs.