Fitment Info: This GrimmSpeed donut gasket fits 2002 - 2022 Subaru WRX, 2004 - 2021 Subaru STI, 2005 - 2009 Legacy GT, 2004 - 2022 Subaru Forester, and 2005 - 2022 Subaru Outback. It's a direct replacement for your old or lost OEM donut gasket. Designed to fit between the lower downpipe and midpipe on the stock exhaust system of Subaru WRX or STI. Some aftermarket exhausts like Cobb Tuning and Borla need this stock - style 'donut' gasket. It's also required with a 3 - inch flat flange downpipe adapter. Features fiber - reinforced graphite construction, sold individually, and replaces Subaru part number 44022AA123.
Using your GrimmSpeed donut gasket is easy. First, make sure your exhaust system is cool. Then, remove the old or damaged OEM donut gasket from between the lower downpipe and midpipe. Place the new GrimmSpeed donut gasket in its place. Ensure it fits snugly and aligns properly. When using aftermarket exhaust systems like Cobb Tuning or Borla, this gasket is a must - have. Also, if you're using a 3 - inch flat flange downpipe adapter, don't forget to install this gasket. For maintenance, regularly check the gasket for any signs of wear or damage. If you notice any issues, replace it right away to keep your exhaust system working well. And remember, this gasket is sold individually, so get a new one when needed.
