The Invidia Q300 catback exhaust system for the Subaru WRX and STI sounds as good as it looks. The Q300 features mandrel bent 76mm stainless steel piping and a free flowing oval style sport muffler to provide better exhaust flow for improved performance. Bolting up a Q300 to your EJ25 will allow your Subie's sonorous exhaust note to come through loud and clear when you want it to, without producing harsh or overly loud overtones; the perfect choice for those who want great performance with an exhaust note that won't wake the dead. The Invidia Q300 exhaust is designed with a polished rolled stainless 101mm tip for a stealthy sleeper appearance.
Specs:76mm stainless steel piping / 101mm (4 inch) stainless steel tip
Subaru STI 2004-2007
Subaru WRX 2002-2007
Part Number: HS02SW1G3S
Note: Are you using a stock j pipe or downpipe? If yes, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046, is required.
Customer ReviewsWrite a review
Perfect for California now
I mean it's alright. Bolts up perfectly to the car, no fitment issues at all, took me about 35 minutes total to install, including removing the old exhaust, so that's nice. But it's barely louder than the stock exhaust, it's not gonna turn any heads, and irritatingly doesn't make any more noise when you stomp on it in a tunnel run. I mean it has zero drone which is nice for a daily, and it's nice actually being able to hear what rpms your at, but it's probly louder inside the cabin than it is from outside. I guess you can't expect much from a 4 cylinder without it being annoying, and it's good quality, I just don't know if it's really worth 600 bucks.
Lots of exhaust I have tried before .. this is the one that fits very well&sound very nice and additional performance certain because of whole set
I am happy with that ...not so much not so low sound ... really tasteful.. looks and quality high end
Thank you IMR team for quick delivery
Thanks so much for selecting us! We are happy you are so happy :)
Got this for my 2007 Subaru Forester sports XT. It requires a slight modification for the exhaust hangers and about a 1-2 inch extension (post muffler) on the tip - easy work for your local muffler shop. The exhaust was fairly loud for a couple of weeks (for me), but eventually settled on a great, quite, and deep tone. It does reach its loudest amplitude at cruising rpms, but it's bearable - even for me.