Shop Subaru exhaust adapters at IAG Performance for 2002–2023 WRX, STI, Legacy GT, Forester XT, and BRZ models. We offer a wide selection of downpipe-to-cat-back adapters, including 3-inch and 2.5-inch exhaust adapters, flanges, and connection hardware to help you properly fit aftermarket exhaust components. Whether you're installing a new exhaust system or adapting existing parts, these components ensure a secure, leak-free connection. Featuring trusted brands like Invidia, Mishimoto, and TurboXS.