The HS02SW1GTP Invidia N1 cat back exhaust is a top - choice for 2002 - 2007 Subaru Impreza WRX and WRX STi models. It comes with new gaskets and hardware. Constructed from 304 stainless steel, it features a 3 - inch piping diameter and a 4 - inch stainless exhaust tip. The resonated mid - pipe and single - exit design give it a great sound. It includes a silencer and has exhaust hangers welded at OEM locations for a direct fit. This is one of the best - sounding, fitting, and looking cat backs for your GD WRX/STi. Installation is a breeze: just remove the old quiet exhaust and install the Invidia N1. If using the factory downpipe, you'll need a catback adapter from GrimmSpeed, Invidia, or Torque Solution.
Using this Invidia N1 cat back exhaust is super easy. First, turn off your car and wait for the engine to cool down. Then, remove the old exhaust system carefully. Install the new Invidia N1 exhaust in place, making sure the exhaust hangers fit into the OEM locations. After installation, start your car and check for any unusual noises or leaks. When it comes to maintenance, regularly check the gaskets and hardware for tightness. If you notice any rust or damage on the 304 stainless - steel parts, clean them with a mild stainless - steel cleaner. Also, make sure the silencer is in good condition. If you're using the factory downpipe, always keep the catback adapter in mind as it's necessary for a proper fit.
