This Invidia N1 Racing Cat Back Exhaust is a top - notch choice for 2002 - 2007 Subaru WRX and STI models. It comes with new gaskets and hardware, made of 304 stainless steel for long - lasting durability. The 3 - inch piping diameter and 4 - inch titanium exhaust tip not only look great but also enhance performance. With a non - resonated mid - pipe and single - exit design, it gives your car a sporty and aggressive sound. It includes a silencer and exhaust hangers welded to OEM locations for a direct fit. This exhaust is known for its excellent sound, fit, and appearance. If you're using the factory downpipe, you may need a catback adapter from GrimmSpeed, Invidia, or Torque Solution.

Using this Invidia N1 Racing Cat Back Exhaust is a breeze. First, turn off your car and make sure it's cool. Then, remove the old exhaust. You can do this by loosening the bolts and disconnecting the hangers. Once the old exhaust is out, take your new Invidia N1 exhaust and align it with the OEM locations. The exhaust hangers are already welded in the right places, so it should fit right in. Tighten the bolts and connect all the parts. After installation, start your car and enjoy the new sound. When it comes to maintenance, it's a good idea to check the bolts periodically to make sure they're tight. Also, keep an eye on the gaskets for any signs of wear. If you notice any strange noises or performance issues, it might be time to have a professional take a look. And don't forget, if you're using the factory downpipe, make sure you have the right catback adapter.