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Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Community Media
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust (Part Number: )
Invidia Q300 Cat Back Exhaust
Subaru STI Hatchback 2008-2014 / WRX Hatchback 2011-2014
Read 21 Reviews | 27 Q&As
Part # HS08STIG3S
$923.26
msrp: $1,378.00

In stock! Ships same day

Features & Product Details

If you are looking for a great way to squeeze a little extra performance from your vehicle, then you will be pleased with the Invidia Q300 Cat Back Exhaust System. There are several performance attributes that makes this an excellent upgrade. This exhaust system has been made from 304 stainless steel and features 76MM piping. The exhaust has also been designed with minimal bends to reduce the amount of turbulence during acceleration, allowing the engine to exhale the exhaust gasses with less restrictions. This means you will have improvements in throttle response, along with increases in both horsepower and torque. 

This exhaust will come with quad polished tips, and the exhaust hangers are welded onto the stock location of the pipes so you don't have to perform further modifications.

New gaskets and hardware, will be included to make this exhaust system ready for installation.

 

Specifications

Brand: Invidia
Exhaust Orientation: Straight Exit
Installation Hardware Included: Yes
Piping Coating: No
Piping Flex Joint: Yes
Piping ID: 76mm
Piping Material: 304 Stainless Steel
Piping Taper: No
Silencer Included: No
Tip Material: Stainless Steel
Tip Qty: 4
Tip Shape: Round
Tip Size: 101mm
Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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REVIEWS & CUSTOMER MEDIA

21 Reviews
4.5 out of 5 Stars
5 Stars
(16)
4 Stars
(2)
3 Stars
(1)
2 Stars
(2)
1 Stars
(0)
Customer Photos and Videos
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
Invidia Q300 Cat Back Exhaust ( Part Number: HS08STIG3S)
2012 wrx hatchback q300 19 days ago
5out of 5stars

Great fitment. 45 mins to install for me on the ground. Sounds great. No too loud, kinda dronie but not bad. Still has some pops and bangs on down shifts. Great fit for someone who wants a low profile sound, that you can still hear alittle better than stock.
  
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just what i wanted 1 month ago
5out of 5stars

this exhaust is perfect for my DD, i can leave in the mornings without waking the whole neighborhood which is a plus for me! low highway drone but has a nice deep rumble when you want it to. tip: definitely buy the GrimmSpeed downpipe adapter as it makes this install 100x easier.
  
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Sounds great 11 months ago
5out of 5stars

My buddy helped me install this the other weekend and it went on quickly (helps if you have the hanger removal tool) and sounds amazing. Not too loud with a nice deep rumble to it.
  
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0 of 1 people found the following review helpful
wrx in rut 1 year ago
5out of 5stars

If you want a rich deep 1500-3000 RPM bass tone (tapering off gradually and getting more baritone to red line), this is your exhaust system. Easily the least bright and least "tin can" edgy system I have heard. If you want that ricer fart can sound, this is NOT for you. I added a CAI, got a tune and my stock 265hp 2013 went to 320bhp on CA 91 octane! It really kicked up the wimpy stock sheetmetal tipped look of my hatchback. The car almost looks lowered now and properly balanced visually...impressive. Tips were perfectly symmetrical and installer made sure they were perfectly centered on the bumper cutouts. Polished piping, muffler and tips is great too. Took me a week to get well accustomed to the dramatic transformation in sound. Its bellowing like a bull in rut has become a good friend. https://www.youtube.com/watch?v=YjRn0EpOIoI https://www.youtube.com/watch?v=4n7X62O0E1k https://www.youtube.com/watch?v=JbPNmYKs7P0
  
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Great choice if you're on the fence. 1 year ago
5out of 5stars

I bought this a year ago during the Labor Day sale. I had a completely stock 2012 WRX hatch, and was unsure how much rumble I wanted. I didn't want a lot of drone since this my car is my daily driver. But, since we're paying for nearly $1k for a catback, I definitely wanted some rumble. There was a decent amount of drone at first, but it went away after a 500 miles or so. Also, the seats put up in the back helps with drone a little bit too. I also had to buy the Grimmspeed adapter if you have a stock downpipe, But overall, this exhaust has great build quality and great sound. Just enough rumble and people can hear you coming down the street still. My dog hears my car and is waiting before I even pull up the driveway. Plus, quad tip exhaust on a hatch?! Who does that? Subaru does it.
  
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QUESTIONS & ANSWERS

  • Q: Invidia q300  Seth7 months ago

    Im planning on getting a invidia q300 catback exhaust. What would be a good downpipe to go with this exhaust? Im thinking of a catted downpipe considering cobb doesnt support catless downpipes.
    • 0 of 0 people found the following answer helpful

      A:  Most aftermarket downpipes (Grimmspeed, Invidia, etc) use the same 2 bolt 3" flange that this uses. Some downpipes (Cobb and a couple of others) use a stock style flange and will require an adapter. Performance on most aftermarket catted downpipes will be fairly similar.

      Marcus E. @ RallySport Direct 7 months ago  
        
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  • Q: Muffler tip  Acuradrv2 years ago

    Will changing the tip require cutting and welding?
  • Q: Gaskets  raulb50061074 years ago

    I have a 2014 wrx hatchback. What gasket should I use when installing this catback to my stock downpipe?
    • 0 of 0 people found the following answer helpful

      A:  Using the donut gasket and Grimmspeed's OEM downpipe to 3 catback gasket would be the best fit and finish.

      Nick S. @ RallySport Direct 4 years ago  
        
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  • Q: Will it fit?  coloRADo4 years ago

    I have an 09 hatch. I know this won't fit unless I do modifications to the rear diffuser. Do you know if any other modifications will be needed?
    • 0 of 0 people found the following answer helpful

      A:  We have not tried to install this on a 2009 model and we do not know what modifications would be required to make it fit.

      Zach G. @ RallySport Direct 4 years ago  
        
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