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The Mishimoto Subaru exhaust adapter mates a stock downpipe to a 3‑inch exhaust, providing a smooth flow transition and eliminating leaks when used with the Mishimoto 2015+ WRX/STI cat‑back. Made from 304 stainless steel to resist rust in harsh climates, it includes stainless hardware and a 3" 2‑bolt flange gasket and installs in under 15 minutes for a secure, durable connection.
Mishimoto Subaru Exhaust Adapter, Stock Downpipe to 3in Exhaust
