The HS11STIGTP Invidia N1 cat back exhaust is a top - choice upgrade for your Subaru. It fits 2009 - 2014 Subaru Forester XT, 2008 - 2014 Subaru Impreza WRX and WRX STi Sedans. Features include new gaskets and hardware, 304 stainless steel construction for durability, 3.00' piping diameter, 4.00' SS exhaust tip, a resonated mid - pipe, dual - exit design, and a silencer. Exhaust hangers are welded onto OEM locations for a direct fit. The Invidia N1 offers great sound, fit, and look. If using the factory downpipe, you may need a catback adapter from GrimmSpeed, Invidia, or Torque Solution.







Using this Invidia N1 cat back exhaust is a breeze. First, turn off your car and make sure it's cooled down. Then, remove the old quiet exhaust. Next, install the Invidia N1 exhaust in place, using the new gaskets and hardware provided. Once installed, turn your car on and enjoy the improved sound. When it comes to maintenance, regularly check the exhaust hangers to make sure they're still firmly welded to the OEM locations. Keep an eye on the 304 stainless steel construction for any signs of rust or damage. If you notice any issues, address them promptly. Remember, if you're using the factory downpipe, you'll need a catback adapter from the recommended brands. This will ensure a proper fit and optimal performance of your exhaust system.