This bolt stud is a genuine OEM part for Toyota T100, Tacoma, 4Runner, and Sienna models. It is designed to connect the manifold to the exhaust pipe and is made of high-quality steel material that is heat-resistant. The bolt stud comes in a set for both left and right exhaust and is unfinished and bare. In addition to its durable construction, this bolt stud also has an interchangeable part number of 9011610149 and an OE/OEM part number of 90116-10149. It comes with a manufacturer warranty of 1 month and is made in Japan. This bolt stud is perfect for those looking to replace worn-out or damaged parts of their exhaust and emission systems.