Invidia Q300 Cat Back Exhaust

The best exhaust money can buy! Has the right tone, sounds like stock at idle but when you get on it, it sounds like a beast. ultimate sleeper!

Good sound, more reserved than the R400 (2020 STI)

Installation is as easy as expected for a catback, the larger mufflers give you less room to access the rear hangers, but still more than the stock exhaust. Quality is good overall. Some welds are not the best, but also far from the worst. The fit and finish of the tips is excellent. This is much quieter than the R400 and won't be too harsh inside for back seat or young passengers, even on long trips. The rumble still comes out when putting your foot down but fades away while cruising.

Exact sound I was looking for

Being older crowd than the most owners of the WRX, I had some loud pipes in my younger days. Well, I still do have ISR Exhaust on my Miata so the spirit is still there! For daily driving, this must be one of the best quiet exhaust you can purchase. Just like everyone states, it is just tad bit louder than stock. I was thinking it would growl louder on the cold start but proved me wrong. It almost feels like when the Nissan G35's came out and had that little bit of OEM sporty exhaust sound. It's there but not over-exaggerated. As for the fitment, purchased the "GRIMMSPEED STOCK DOWNPIPE TO 3" EXHAUST ADAPTER" to make the fitment very clean and smooth. Personally, a tad bit expensive for the part but will save you headaches in the long run. Make sure to grease the anchors on the hangers so that it slips off easy. I found it easier to have the hangers on the new exhaust and put them back on the car. Have all joints loosely fitted, check the exhaust tip location on the cutout, then tighten it all the way. Installation took about 1 hour. The shipment took a little longer than expected but I was busy for a while any way so all good. All other stuff comes fairly quickly anyway from Subispeed. Thanks for your amazing selections!

Premium Exhaust, great for everyday

Purchased and installed Q300 recently. Fit and finish is high quality. Sound at idle is not much different then stock, maybe 15% louder. Sounds good when on the throttle, but not obnoxious. I am older and not looking for attention from 'Officer Friendly' or anyone really. Great for everyday use. Looks fantastic on the car. I plan to keep my vehicle for a long time, I have no doubt this exhaust will be able to stand the test of time. Also the sale price was unbeatable for the quality you get. Great job Subiespeed and Invidia!

High Quality & Quiet

Just installed the Q300 on my 17 WRX and could not be happier. I am older now and didn't want a lot of unnecessary noise driving to work and these are spot on! Barely louder than stock with a distinct low rumble and can't even hear in the cab wit the radio on unit you get into the throttle, exactly what I was looking for. Install was straight forward and components are very high quality. I spent the $30 for the install kit to go on the stock downpipe and glad I did.

Great Cat-Back Exhaust System!

Very happy with my new cat back system. Product quality is superb, and fitment is dead on! Exhaust sound is more than tolerable. I highly recommend this product.

Invidia Q300

I ordered the Invidia Q300 to replace my stock catback that bolted up to my stock downpipe. This kit came with everything needed. The toughest part of the install was getting the rubber hangers back on. I did this install bymyself, though it would have been easier with another person. The quality of the system is superb and the sound is even better. Its about as loud as stock at idle with a lower rumble. Once you get into the throttle at higher RPM's the sound becomes more disinct, but still not annoyingly loud. (Tip:) Once pre-assembled and installed, if your tips are not straight where you want them, try loosening up the bolts and nuts at the joints and let the mufflers settle or be persuaded into position. Then just retighten the bolts and nuts. Great buy! I would defin. recomend for those that want a racy tone exhaust without the loud droning or 'wrong time' attention grabber. (Cops

2015 STi Invidia Q300 A good choice for a fair price

I recently purchased the Invidia Q300 cat back exhaust for my 15 STi. After many many hours of sound clips and reviews I decided to pull the trigger on the Q300. I am very happy with my choice. It was easy to install. I did it by myself in my garage with minimal trouble in less than an hour. The quality is very good from what I can tell. The fit was good I have no rattles or exhaust leaks and the bumper clearence is just right. I re used the stock exhaust hangars and didn’t have to order any special gaskets to get a good seal on the stock downpipe. The only advice I will give is if you are planning on hooking up to the stock downpipe the Invidia hardware is too big for the factory downpipe flange, they won’t fit through. I had to get 2 - 2” x 5/16 bolts at the local hardware store in order to complete the install. I am assuming Invidia probably expects you to be running an aftermarket downpipe. As for sound, it is a noticeably deep rumble over stock, it is not obnoxious and the drone is minimal. This exhaust gives you the sound you want from a car like this but can be quiet enough if you don’t want to attract any unwanted attention.

quick delivery,easy install

Fitment on 2015 wrx is acceptable, not perfect. No clearance issues, slight mis-alignment of tips. Only slighty louder than stock.