The HS08SW4G3S Invidia Q300 Single Tip Cat Back Exhaust is a top - notch choice for your vehicle. It fits 2008 - 2010 Subaru WRX sedans and 2009 - 2013 Subaru Forester XT. This exhaust features new gaskets and hardware, made of 304 stainless steel. It has a 3 - inch piping diameter and a 4 - inch stainless exhaust tip with a single - exit design. The exhaust hangers are welded onto OEM locations for a direct fit. Note that this is for narrow body sedans. If your sedan has the stock downpipe, you'll need an adapter to ensure a leak - free fit.

Using this Invidia Q300 Single Tip Cat Back Exhaust is straightforward. First, make sure your vehicle is a narrow body sedan from the specified model years. If your car has a stock downpipe, install the adapter before fitting the exhaust to avoid leaks. When installing, take advantage of the exhaust hangers welded to OEM locations for an easy and direct fit. As for maintenance, since it's made of 304 stainless steel, it's quite durable. But it's a good idea to regularly check the gaskets and hardware for any signs of wear. Wash the exhaust with mild soap and water to keep it looking good. Also, if you notice any unusual noises or vibrations, it might be a sign to inspect the exhaust system thoroughly.