Fitment: This gasket fits 2002 - 2014 Subaru WRX, 2004 - 2021 Subaru STI, 2005 - 2009 Subaru Legacy GT, 2005 - 2009 Subaru Outback XT, and 2004 - 2013 Subaru Forester XT. Features: It's a must - have for your downpipe installation. GrimmSpeed has tested countless aftermarket gaskets. The best option is this premium multi - layer steel gasket with a 304 stainless steel fire - ring. It's 7 - layer thick, 22% thicker than the OEM gasket, and less likely to leak. It cross - references with Subaru part #144022AA180 and is sold individually.
Using this GrimmSpeed turbo to downpipe gasket is easy. First, make sure the turbo and downpipe surfaces are clean and free of debris. Then, place the gasket between the turbo and the downpipe. You'll notice it's thicker than the OEM one, which helps with a better seal. When tightening the bolts, do it gradually and evenly to avoid any uneven pressure. As for maintenance, there's not much you need to do. Just keep an eye on it during your regular car check - ups. If you see any signs of leakage or damage, it's time to replace it. Since it's made of high - quality materials, it should last you a long time with proper use.
