HS15SW4G3S. Fitment Information: This exhaust system is designed specifically for 2015 - 2021 Subaru WRX and 2015 - 2021 Subaru WRX STi models. Features: Comes with new gaskets and hardware. It's crafted from high - quality 304 stainless steel, offering durability. The piping has a 3 - inch diameter, and it has a 4 - inch stainless tip. The exhaust hangers are welded onto the OEM locations, ensuring a direct and seamless fit. Notes: If you're into that awesome exhaust rumble, you'll love the Q300 for the VA chassis. It has 3 - inch tubing, mandrel - bent pipes, and CNC - cut flanges. If you have the factory downpipe, you'll need the adapter for a perfect fit.
Using this Invidia Q300 cat - back exhaust is straightforward. Just follow the included installation guide to attach it to your 2015 - 2021 Subaru WRX or STI. The exhaust hangers are already welded in the right spots for an easy fit. When installing, make sure all the gaskets and hardware are properly tightened. As for maintenance, regularly check the exhaust for any signs of damage or loose parts. Since it's made of 304 stainless steel, it's quite durable, but a simple wipe - down every once in a while can keep it looking great. If you have the factory downpipe, don't forget to use the adapter as recommended. Enjoy the sweet rumble this exhaust provides and the enhanced performance it brings to your vehicle.
