GrimmSpeed 3in Downpipe to Stock Cat Back Adapter Subaru WRX 02-21 / STI 04-21 | 077044

This GrimmSpeed adapter is a game - changer for your Subaru! It's designed to fit a wide range of models, including the 2002 - 2021 WRX, 2004 - 2021 STI, 2005 - 2009 Legacy GT, 2005 - 2009 Outback XT, and 2004 - 2013 Forester XT. Say goodbye to exhaust leaks forever! It allows you to connect an aftermarket 3 - inch downpipe to a 2.5 - inch OEM or OEM - like catback exhaust with a perfect seal. This adapter works only with a flared end, creating a smooth transition from your 3 - inch aftermarket downpipe to the OEM midpipe. The flared end, just shy of 3 inches, won't block the exhaust flow. It can be used with both flat - style and donut gaskets, making it unmatched in its versatility. Features include CNC laser - cut steel construction, a leak - free seal, a smooth connection, a flared adapter transition, a flange for an OEM donut gasket, unobstructed exhaust flow, installation hardware, a simple bolt - on design, and it's sold individually.

Using this GrimmSpeed adapter is a breeze. First, make sure your vehicle is turned off and has cooled down. Locate the aftermarket 3 - inch downpipe and the 2.5 - inch OEM or OEM - like catback exhaust. Place the adapter between them, ensuring the flared end is properly aligned. You can choose to use either a flat - style gasket or a donut gasket. Then, use the included installation hardware to bolt the adapter in place. Tighten the bolts evenly to get a good, leak - free seal. As for maintenance, regularly check the bolts to make sure they're still tight. If you notice any signs of rust or damage, clean or replace the adapter as needed. Remember, this adapter only works with a flared end, so don't try to use it with other types of pipes. Enjoy a smooth - flowing exhaust system with this great adapter!