Invidia Q300 Cat-Back Exhaust: Polished Tip

Invidia Q300 Cat-Back Exhaust: Polished Tip
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    5 out of 55 out of 55 out of 55 out of 55 out of 5 21 reviews



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    Will It Fit Your Vehicle?


    The Invidia Q300 exhaust has a flat bottom shaped muffler design results in improved high speed aerodynamic performance. The muffler inside contains continuous piping design and use of Advantex material that results in an excellent free-flow exhaust with optimized back pressure, giving greater horsepower, torque gains and a rich deep sporty sound. The use of SUS304 polished stainless steel piping, Mandrel bent to shape, state of the art CNC machine made flange, Robot TIG welding and double wall polished stainless steel or Titanium tips, provides outstanding durability and appearance.


    • Part Number: HS01AR1G3S
    • Exhaust Diameter: 70mm (2.75in)
    • Manufacturer: Invidia
    • Muffler Tip: 101mm (3.97in)

    Vehicle Fitment

    Acura RSX
    2002 Acura RSX Type-S
    2003 Acura RSX Type-S
    2004 Acura RSX Type-S
    2005 Acura RSX Type-S
    2006 Acura RSX Type-S

    21 reviews for Invidia Q300 Cat-Back Exhaust: Polished Tip

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    4.8 out of 5.0

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    4 out of 54 out of 54 out of 54 out of 54 out of 5

    5/17/2017 by Jamone Thomas

    Just what I was looking for

    Love this CAT Back. Not so loud and ricey sometimes forget it's even there. The reason I gave 4 instead of 5 is you would think by now they would know they welded the hanger wrong. Like everyone one else I used high temp hose and zip ties to stop the rattle.

    4 out of 54 out of 54 out of 54 out of 54 out of 5

    12/27/2016 by Alan Arevalo


    Love this exhaust it's really quiet! I honestly forget that I even have an exhaust. I wish it'll come with hangers for the price but it's all good no fitment issues at all but I had a rattle at the back but it was an easy fix

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    4/30/2016 by Kurt Dewar


    I bought this cat-back system to replace some eBay exhaust the previous owner had on the car. I must say, I'm impressed with the fit, finish and sound of the Q300. The only con I can think of is the mid pipe section. Due to the size of the piping, it does kinda hang low. I haven't had problems, but if you're slammed, be careful.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    4/17/2016 by Sutterrrx

    Best Sound

    Exhuast fits perfectly, though I did have to cut a piece of hose and zip tie it to one of the brackets for the muffler since it was hitting the frame just a little. Exhaust note is amazing! Not too loud so my neighbors don't hate me, doesn't draw the cops eyes, but definitely a lower note that you can hear when you're cruising and screams when doing a quick pool. Love this exhaust and I recommend it for everyone.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    8/26/2015 by Edgardo Acosta

    Great sound

    I love this exhaust matched it up with k tuned race header sounds great and looks great

    4 out of 54 out of 54 out of 54 out of 54 out of 5

    6/23/2015 by jdmster82

    your neighbors will love you :-P

    I went from skunk2 R t this and it is a lot quieter, my neighbors love me for that lol. This exhaust is well rounded and cant go wrong especially with race header because at normal cruise it very mellow and doesn't create un wanted attention.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    6/1/2015 by Nick Paolantonio

    Thumbs up

    The Q300 is great! you get the performance of a 70mm exhaust with out the drawbacks! if your rsx is your daily, look no further, nice deep sound without being obnoxious. fit right on my car, some minor rattles but i fixed it with hi heat wrap.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    4/15/2015 by Matt

    Great Exhaust

    This is a great Exhaust system. The sound is amazing, and I have not heard a nicer sound on a RSX in person. The sound is very low and deep until you hit VTEC, then it opens up and people definitely know you have an aftermarket exhaust. The install was easy, I had the same issue as others with the back muffler hitting the frame. Easy fix, I just bent the hanger slightly and have not heard the rattle again.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    12/30/2014 by Juan Londono

    Best Mod

    Thuis is the most satisfying mod I have gotten for my car so far. It is extremely quiet compared to my old exhaust (Megan Drift Spec) and it is very easy on the ear at highway speeds. My old exhaust used to rasp at 5k because of the cat delete (Megan test pipe) but the rasp is non-existent now. Fitment is perfect. The mid pipe has plenty of clearance and does not hit the frame like other users have said. This might be due to the test pipe or Invidia changing their design, I don't know. There is however one gripe, and it is the right muffler hanger rattling against metal in two spots, the hanger hook and a piece of the frame. Like others have stated, it is a very easy fix (Rubber hoses and zip ties). This should not scare you away from buying the best exhaust system available. The VTEC crossover sounds amazing, and the intake is louder than the exhaust at crossover. Overall, it is perfect. If you are thinking of buying a different exhaust, forget that nonsense and buy this beautiful piece of art.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    4/16/2014 by Jesse Sihas


    hands down on the best exhaust sound I matched it with the invidia RH and its very quiet..

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    10/5/2013 by Callan Gouger

    q300 04 rsx-s

    This exhuast is just what i was looking for. i didnt want a raspy ricey exhaust i wanted a lower growl that was quiet, but louder than stock. i have it paired with an OBX race header, hardware and gaskets all line up and fitment is perfect, no leaks. only thing i would add to any prospective buyer is some spots on the exhaust (right after the header) touch the frame and rattle. i bought some heat wrap and wrapped the pipe all around that spot. rattle gone

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    8/15/2012 by Ray K

    Q300 Perfect Sound, No Drone Cruising, Nice System.

    Got this installed around a month ago and purchased from here. Only issue with the system on my 2002 RSX Type-S is that the rear muffler hanger will hit the frame, but it's an easy fix with rubber hoses/zip ties. Like others said, the sound of this system is perfect, definitely not loud on the exterior and doesn't sound like a rice-rocket, but has a deep aggressive tone. I stood outside to see how loud it was, and wow, the sound is amazing!! Strongly Recommended, if you don't want a obnoxious exhaust, but has a deep tone, this is the one!!

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    8/9/2012 by Ryan Pritchard


    This is an awesome exhaust! Had the guys down at K Series Parts install it and I have to say it is perfect! Sounds like the stock exhaust at idle and even at the lower RPMs but when you get on it, it sounds awesome! It hits the underbody a bit which does get fairly annoying but it can be fixed. The reason it hits the bottom of the car is because the piping is so large which means you are getting outstanding performance! Would recommend this exhaust to everyone looking for the best performance without a ridiculously loud exhaust!

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    8/2/2012 by Steve

    Great Exhaust

    Solid exhaust, sounds great paired with my DC race header, slight drone at 3k but still quite. The only thing is I had to dimple the top of the exhaust near the header coupling so it would fit with out hitting the frame, no big deal due to the fact it's fully stainless. Love the looks and performce of the exhaust and wouldn't buy anything or anywhere else !

    4 out of 54 out of 54 out of 54 out of 54 out of 5

    6/4/2012 by Tyler

    Great Sound

    I love the sound that this exhaust makes, I can't wait to pair it with a new header soon. My only complaint is it sounds as if its hitting the under body of the car and makes a rattle type noise (normally happens at lower speeds). I just read a post that if you cover some parts (areas likely to be causing the rattle noise) in high heat rubber the noise goes away.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    5/26/2012 by J

    Great exhaust!

    If you're looking at this exhaust, get it now! Great quality, great fitment and sounds perfect, nice deep bass tone up. The only issue is one of the muffler hangers hits the sub frame and rattles. Easy fix though, don't let that stop you from purchasing this exhaust!

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    5/24/2012 by Special K

    Great quality exhaust

    Perfect exhaust for anyone who aint lookin for something loud and obnoxious. also is a 70 mm exhaust which is a nice addition especially at the price. great welds and also nice looking exhaust. I LOVE IT!

    4 out of 54 out of 54 out of 54 out of 54 out of 5

    4/10/2012 by jake

    Love this exhaust!

    From the moment this thing showed up on my door step and i opened it i fell in love! Great welds and nice flange. My only complaint is a thumping sound that im hpping my MMI will fix!

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    2/25/2012 by Shawn Annon

    No no fart can

    I love the sound, not very loud but good tho :):)

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    11/10/2011 by Jeff

    Nice Exhaust

    Packaged nicely, welds were good. Fitment was petty good, slight rattle from the muffler exhaust hanger easily fixed with a small amount of vacuum hose for a buffer. engine is louder than exhaust at high rpm. very slight drone between 3-4k on highway. Nice refined sound thats of course louder than stock... No header with it yet. The studs on the cat are to short for the flange so you have to heat them and bang them out.

    5 out of 55 out of 55 out of 55 out of 55 out of 5

    12/17/2010 by toph

    After having/hearing countless setups, im never going back after the Q300.

    Best damn sounding exhaust ive had and heard on a DC5 without being obnoxious. The sound is very tuned and mellow. Not raspy at all. Sounds like an uber agressive ITR Catback. Ive owned an HKS Hi-Power and ITR Catback, all paired to a DCRH and CRSX RH. Ive heard many setups, and hands down, this Q300 takes the cake. I would buy this again in a heartbeat, especially since it is very stealthy in appearance. It almost looks like it came with the car.