PLM 2.5in to 3in Exhaust Adapter Flange Subaru WRX / STI 2002-2021 EJ Models

Part #: PLM - SUB - OEDP - 30CB. The Private Label MFG exhaust adapter flange is a game - changer for Subarus with 2.5 - inch/OEM downpipes and 3 - inch midpipes/catbacks. It's ingeniously designed to stop those pesky exhaust leaks that other designs struggle with. This adapter features a 2.5 - inch machined lip flange that fits smoothly into the downpipe and then seamlessly transitions to a 3 - inch diameter to connect with your midpipe or catback. It's suitable for 2.5 - inch/OEM downpipes and 3 - inch midpipes/catbacks and might also work for other applications. Here are its great features: It's brand new in the box, made of mild steel, and comes with a one - year limited warranty. It's a simple bolt - on solution with nuts and bolts included. The CNC - machined flange has a machined lip that centers the 2 - bolt gasket (gasket included). The flange is about 3/8 - inch thick and has a one - piece design that won't block the exhaust flow.

Using this exhaust adapter flange is easy. First, make sure your Subaru has a 2.5 - inch downpipe and a 3 - inch midpipe or catback. Then, insert the 2.5 - inch machined lip flange into the downpipe. Next, connect the 3 - inch end of the adapter to your midpipe or catback. Use the included nuts and bolts to secure it in place. When installing, ensure that the gasket is properly centered by the machined lip. As for maintenance, regularly check the bolts to make sure they are tight. If you notice any signs of rust, you can use a rust - resistant spray. Also, keep an eye out for exhaust leaks. If you find one, check the gasket and bolts. If the gasket is damaged, replace it with the spare (if you have one) or a new one. This adapter flange is built to last, but with proper care, it will serve you well for a long time.