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Invidia Q300 Cat Back Exhaust Titanium Tips - Subaru WRX/STI Sedan 2011-2014

Manufacturer Part # HS11STIG3T


MSRP: $1,467.00

In stock! Ships same day
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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 premium mufflers and a set of beautiful quad titanium 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.

This exhaust is for the 2011+ WRX/STI sedans ONLY. Will not fit the hatchback models.

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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: Titanium
Tip Qty: 4
Tip Shape: Round
Tip Size: 110mm

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.




Great Exhaust
Sub Zero 3 months ago
Sounds awesome, perfect pitch. It got rid of all the drone from the stock exhaust. I dont like loud exhausts but even I was surprised how quiet this is. But if you plan to go turboback I think the volume will be perfect after a downpipe. Just wanted to let others know that if this exhaust smokes a bit when its new, its because its burning off residue in the exhaust. No need to worry.
Verified Purchase

Great Product by INVIDIA
MK 1 year ago
This is what I've been looking for. Quality build for this exhaust system is top notch and that iconic Subaru boxer rumble sound brings me so much joy in my heart. Really happy with the purchased. Thanks RSD.

Verified Purchase

Perfect for a daily
Paul Grimm 1 year ago
Everyone likes the quad tip... it sounds (resonated) way better than stock but is comfortable for distance if you care about that sort of thing. wakes up a little if you open up the rest of the pipes. Now the important stuff: welds are probably robo because they are perfect. bends are nice and smooth. Shes a little heavy, but look at those cans! -tip alignment is a pain, but doable -dont forget hanger bushings (please dont do the extended) -it may be quieter than you think or want... Then again I am deaf and have no problem driving a straightpiped sbc for hours with broken windows I am happy with it, and its plenty loud when you open it up. if only it were lighter

Verified Purchase

Cheeeeese 2 years ago
Ordered on a Sunday night, received it the following Wednesday morning, super impressed with the shipping from RSD. Then, it took me and a buddy maybe an hour for install. Fit and quality was perfect! And of course, it gave me that perfect subie rumble I was looking forward to. I did end up needing 3 12mmxl kartboy hangers and two regular 12mm kartboy hangers. So be aware.
Verified Purchase

tip spacing is inconsistent
uluski.devin96082 3 years ago
Got my first q300 and immidiatley after pulling it out of the packaging realized that the tips on the driver side were about 1/2 further apart from eachother than the tips on the passenger side. Standing 10 feet back it was clearly noticable. RSD was helpful with contacting invidia and got them to send me another one under warranty. Second one showed up and was even worse than the first. This time the driver side tips were roughly 3/4 further apart and likley would not even fit in the exhaust cut outs on the bumper. I contacted invidia and he told me he cant do anything about Cosmetic inconsistencies and refused to take the exhaust back. Luckily RSD refunded my money in full. Thanks RSD team for your efforts but unless your okay with paying $1000 for an exhaust that looks like a cheapo knock off, id go with a different brand.

  • Q: Does it fit perfectly  BrakoQc 11 months ago


    Regarding that I'll fit the Q300 to my stock dp with the 3'' adapter, does everything gonna fit in place, in the hangers? or there will be a gap?

    • A: Nothing else is required to install this catback onto your OEM downpipe. Everything will fit like OEM and using the OEM downpipe to 3 inch catback adapter will help ensure a leak free seal.

      Connor M. 11 months ago
  • Q: Q300  A1_Cardoza 1 year ago


    Can I take off the q300 axle backs and connect the nameless axle backs to the invidia y pipe?

    • A: Unfortunately, the Nameless Axle-back (Muffler Deletes) are only compatible to the OEM Y-Pipe.

      Brady R 1 year ago
  • Q: Invidia Q300 exhaust and DP  Sthornton 1 year ago


    Looking to buy the invidia catless divorced DP and the invidia Q300 exhaust. Will these items come with all the gaskets and bolts I need or do I need to purchase them separately

    • A: The hardware to connect this to the downpipe will be included with this catback and you would only need to purchase the Turbo-Downpipe Gasket to complete the install.

      Brady R 1 year ago
  • Q: Invidia dp and gaskets  welocostes10092 2 years ago


    Do you need an adapter with an invidia catless dp to connect to the q300? Also what are the gasket sizes needed for all 4 gaskets?

    • A: An adpater is only needed if paired with the Stock Downpipe or Cobb's Downpipe as they utilize a 2.5" flange. You will need (2) 2.5in 2 Bolt Gaskets and (2) 3in 2 Bolt Gaskets

      Brady R 2 years ago
  • Q: Q300 adapter to stock down pipe 13wrx  rodo_2152851 2 years ago


    So I understand I need an adapter to connect the q300 to my stock down pipe and a oem gasket. My question is do you sell that? If so , what are the exact names (or pet numbers) for them, so I can search them and purchase them here on your website.

    • A: That is the Grimmspeed stock downpipe to 3" catback adapter, part number GRM 077046. It is also recommended that you source a new OEM donut gasket, part number SUB 44022AA123.

      Nick S. 2 years ago