Description
Upgrade WRX or STI with the Tsudo 3″ Cast Iron Bellmouth Downpipe. Reduce back pressure for faster turbo spool and peak performance. Made from corrosion-resistant T304 stainless, it includes an extra wideband bung and and requires reuse of the OEM Bellmouth gasket
- 2008–2014 WRX (MT only)
- 2008–2019 STI (MT only)
- 2005–2009 Legacy GT (MT only)
- 2005–2009 Outback XT (MT only)
- 2009–2013 Forester XT (MT only)
Need a Flange Adapter for OEM exhaust? Click here
Looking for a High-Flow Downpipe or Cat-Back Exhaust? Click here
Cat-less racing header for off road use. Not EPA-compliant and cannot be shipped to California or New York.


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