Grimmspeed 3" Downpipe To Stock Adapter Flange

This downpipe adapter is the perfect solution to the problem of matching a 3" aftermarket downpipe to a catback system that uses the stock 2.5" taper. The 3" downpipe adapter plate allows you to install the factory donut gasket on the end of any 3" flat flange downpipe to ensure a perfect seal with the factory or any other 2.5" tapered cat-back exhaust system (Cobb Tuning or Borla, just to name a couple).

Don't forget a new donut gasket!

Fits most late-model Subarus.