The TurboXS Subaru OEM Downpipe to 3" Catback Adapter is the perfect solution when trying to mate an OEM Downpipe to a 3" Catback Exhaust System. Made from 304 Stainless Steel for superior corrosion resistance, this kit Multilayered 304 Stainless Steel Exhaust Gasket. FEATURES: Adapter plate machined from 304 Stainless Steel for superior corrosion resistance CNC Machined Flange contoured to match the OEM donut gasket Machined lip holds 2-bolt gasket in place This kit includes our extra-thick multilayered 304 Stainless Steel Exhaust Gasket