This TurboXS 3" downpipe-to-OEM catback adapter for Subaru WRX/STi is machined from 304 stainless steel and includes an extra-thick, multilayered stainless exhaust gasket. It lets a 3" downpipe interface cleanly with the OEM catback by matching the donut-style flange while the robust gasketing reduces the chance of leaks and provides enhanced corrosion resistance for long-term service.
Turbo XS Subaru 3in Downpipe to OEM Cat-Back Adapter w/Stainless Steel Exhaust Gasket