The HS15SW4TRG Invidia cat - back exhaust is a top - notch upgrade for your 2015 - 2021 Subaru WRX or WRX STi. Here's what makes it stand out. It comes with new gaskets and hardware, ensuring a smooth installation. Crafted from Grade 5 Titanium, it's not only durable but also lightweight. The 3.15 - inch piping diameter and 4 - inch titanium exhaust tip enhance the exhaust flow and give your car an aggressive look. With a non - resonated mid - pipe and a single - exit design, it produces a deep, throaty sound. It even includes a silencer for when you need a bit more quietness. The exhaust hangers are welded onto OEM locations, making it a direct fit. The Invidia N1 is one of the best - sounding, fitting, and looking cat - backs for your VA WRX/STi, especially in full titanium. It's super easy to install: just remove the old, quiet exhaust, put in the Invidia N1, start your car, and enjoy the enhanced performance. If you're using the factory downpipe, you'll need a cat - back adapter. You can choose from options by GrimmSpeed, Invidia, or Torque Solution.
Using this Invidia cat - back exhaust is a breeze. First, gather all the tools you need. Then, carefully remove the old exhaust system from your 2015 - 2021 Subaru WRX or WRX STi. Next, take the new Invidia exhaust and attach it using the provided new gaskets and hardware. Make sure the exhaust hangers fit perfectly onto the OEM locations. Once installed, start your car and listen to the great sound. Remember, this exhaust can be quite loud, so be considerate of your neighbors. As for maintenance, regularly check the gaskets and hardware for any signs of wear or looseness. Clean the titanium parts with a mild cleaner to keep them looking shiny. If you use the factory downpipe and need an adapter, make sure to choose a quality one like the ones from GrimmSpeed, Invidia, or Torque Solution.
