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Invidia Q300 Cat Back Exhaust Stainless Tips
Subaru WRX/STI 2015+
Features & Product Details
RallySport Direct proudly carries a large selection of quality high-performance master-crafted exhaust options brought to you by Invidia.
This is the Invidia Q300 Cat-Back Exhaust System. The Q300 is a highly coveted exhaust system among enthusiasts because it gives them everything they want in terms of a performance upgrade. You get premium fabrication using quality materials that are combined with machined welds. The design features very smooth radius bends with an increase in piping diameter to allow for an unobstructed flow path for the exhaust to escape. And the beautiful polished finish right out of the box will check all the aesthetic boxes to provide the rear of your vehicle with a pronounced look. The final result will provide the user with a nice increase in power and torque, and improvements in the throttle response. The most rewarding aspect is the race-inspired sound. From mild bolt-ons to full builds, the Invidia Q300 will change the character of your vehicle to make your driving experience much more enjoyable.
DETAILS:
NOTE:
Product Video
Specifications
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REVIEWS & CUSTOMER MEDIA
I had a nameless system with my Cobb downpipe. That was way too loud. This exhaust was a life saver for me. Aggressive enough without giving me a headache lol. Now I can hear the mechanical aspects of the car too and not just exhaust.
First off ...Yes there is drone with this exhaust don’t be fooled by all the “quiet” reviews. So if you’re one who is prone to hating drone you will definitely be able to hear it. Otherwise it’s pretty tame and gets loud when you go WOT. The idea sounds much better and is more bass heavy. Firmest is awesome and the tips look huge.
I recently changed my stock VF48 turbo for a Cobb 20g. I wanted to maximize the air flow with the new turbo so I decided to purchase a Q300. This exhaust is a full 3 inch catback vs. the tapered Cobb I had on my vehicle. Another reason I purchased the Q300, is that Cobb drones around 75-80MPH with my setup. I am so happy with the purchase I made, the exhaust is quieter in my opinion and still has enough exhaust note when you decide to punch the acceleration. The welds are beautiful and the exhaust sits well. If your looking for a quiet exhaust that maximizes a full 3 inch diameter piping without breaking the bank I suggest looking into the Q300.
I wanted something that was not too loud but brings out the Boxer rumble more. The Q300 is exactly what I was looking for. It's not much louder than stock at low RPM but rumbles like an earthquake. However, if you get on the throttle, it'll remind you that it's there and ready to do work. If you don't like your stock stereo, that's okay. You can turn it off and listen to the Q300. It's sounds much better.
The Q300 has a deep burble and brings out the classic Subaru sound. I would say with the windows up it sounds about 20% louder than stock driving normally. With the windows down and going wide open throttle it has a very nice growl. In stock form I heard mostly wind and induction noises now the Q300 balances it. The best part is on the highway cruising at 75mph there is no drone with the resonator. There's a hint of exhaust note that balances out road noise from the tires and windows. Overall with the fit and finish, price and quick delivery service you can't go wrong.
QUESTIONS & ANSWERS
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Q: Decibel red17sti3 years ago
do you guys happen to know the decibel level on a 17 STI?
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A: Yes but not in a controlled environment, so take this with a grain of salt. A stock STI will be about 92 dB where with just this catback and no other exhaust mods, it will be around 97 dB at idle and 103 around 3K RPM. Note this is for reference only and your results (testing equipment, mods, environment, meter placement etc..) can vary greatly. Hope this helps!
Rick C. @ RallySport Direct 3 years agoWas this answer helpful?
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Q: Gaskets BoFlex4 years ago
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A: You will need x2 of 3" 2 bolt gasket and x2 of 2.5" 2 bolt gasket.
Brady R @ RallySport Direct 3 years agoWas this answer helpful?
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Q: install snok3435 years ago
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A: You will need part # GRM 077046 and part number #SUB 44022AA123 to pair this with the OEM downpipe.
Jared A. @ RallySport Direct 5 years agoWas this answer helpful?
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Q: Adapter for Q300 Mike6 years ago
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A: You will need an adapter MODEL # GRM 077046 to use the Q300 with the Cobb downpipe.
Ben L. @ RallySport Direct 6 years agoWas this answer helpful?
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Q: adapters 1stsubi7 years ago
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A: Yes, you will want to purchase the stock downpipe to 3" catback adapter sold by Grimmspeed.
Nick S. @ RallySport Direct 7 years agoWas this answer helpful?
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