Invidia (HS15STIG3T) Q300 Rolled Titanium Quad Tip Cat-Back Exhaust System for Subaru WRX/STI

A few years ago I purchased a turbo back system from MAPerformance. Quality was ok and fitment was not great. The sound became louder than I preferred... Especially the drone in the car. I've been reluctant to drive the car as much as I originally did for this reason. I bit the bullet and purchased this cat back system and bolted it up to their J pipe in hopes of it quieting down and it did so perfectly. I'm 42 years old and love the car but couldn't stand the exhaust sound fit for a 20 year old. The mufflers and the resonator are bigger than the other system, especially the mufflers. I really didn't need to adjust the pieces very much to get the tips lined up and the mid pipe did not hit the driveshaft and axle shaft like the other system did. Not even close. The sound is perfect and even cold start is not very loud. I'm now driving the car more than my other vehicle again. Worth the money spent a second time.

Love this exhaust system! I have a 2015 WRX Premium.I wanted something louder than the stock exhaust but still quite at idle and highway speeds. This has definitely exceeded my expectations. One great thing is it's quiet until you punch it, then it screams still with that deep Subaru sound.In addition, I have this installed with the Invidia J-Pipe and currently running the Stage 2 map from the Cobb AP.I wanted to keep the look of the quad tips and these tips are amazing with the burnt look.The install was very easy to do especially with a car lift and with two people. I would say the install difficulty was a 2 out of 5. With 5 being the most difficult.I would highly recommend this exhaust!

The media could not be loaded. I’ve had this exhaust now since June of 2023, I was worried about getting something too loud because I didn’t want to piss off my neighbors but I still wanted a better sound than the stock exhaust this was perfect. While in the video the cold start might sound kinda loud, I do this everyday at 5am since I got it and I’ve never even woken up anyone in my house. I will also add that with a quality tune you can still get really loud pops when you want too. It’s held its color very well looks brand new everytime I wash it.

I installed a aftermarket j-pipe and the axle back exhaust I had just became way too loud. I wanted something a touch quieter but still have the boxer rumble. This exhaust fits the bill. Cruising and normal driving it is nice and deep, no drone at all. Step on the go pedal and it wakes up and sounds amazing.The welds are beautiful, the finish is top notch. Hangers line up perfectly. Took about an hour and half by myself on ramps to take off the old and put the new on.Won't go wrong with this catback!

Direct fitment, great sound!

Perfect sound for my taste. Provides a satisfying rumble but by no means is too loud. It simply makes the car more fun to drive. One negative for me however is that this exhaust lowers the clearance if you have a steep driveway. I found out the hardware when driving in for the first time and scraped. Was depressing to say the least. Sadly I will be removing this exhaust and selling at a discount because of this. Speed bumps and all are no problem. Sketchy driveways unfortunately are. I had it professionally installed so it’s not an issue of me not cinching it high enough. Something you should factor in so you don’t end up in my situation.

This looks great, The tips fill up giving it a nice full look. Its a beuaitful exhaust. I am a fan of a bit more discreet, so the stainless steel one still looks classy, to me, plus adding a bit of aggressiveness and those little invidia details.If you are buying the Q300 its because you dont want a loud exhaust or to draw too much attention, however it does have a nice deeper sound than the stock when you give it gas. If you are looking for the traditional import race car sound this isnt your exhaust.Overall. It looks great, a tiny bit more than stock is all I wanted.5 stars because its exactly what i needed as a 30year old professional.

2.5 hours to install without help. Great sound. If you are looking for loud, this is not it. Solid quality, no drone at cruising speed. Sounds good when getting on it. The tips fill the exhaust gap perfectly. Initial quality, excellent.