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

Manufacturer Part # HS11STIG3T


MSRP: $1,467.00

Ships within 2-3 weeks
Qualifies for free shipping!

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RallySport Direct 2011 STi Project Car POWER Kit ( Part Number:RSD 11STIPC)
RallySport Direct 2011 STi Project Car POWER Kit - Subaru STI Sedan 2011
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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.



Verified Purchase

Decent performance, less than stellar fitment.
Smo 3 months ago
I have this exhaust mated to the Invidia Catted DP. The sound is amazing. Performance is great. The fitment is OK, no clearance issues under the car or contact with the bumper. The height in the rear is good. But the left/right and rotation of the pipes beginning at and after the "Y" was noticeably off. Almost as if the rotation at and after the "Y" was off by a few degrees. This caused the left tips to stick out more than the right along with the tip alignment in the rear bumper spaces. Took an hour of labor at a good local shop to get it sorted out. I don't expect perfection on a retail dual exhaust, but for ~1000 bucks I expect the imperfections to be barely noticeable.

Great Exhaust
Sub Zero 7 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 2 years 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 3 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.

  • Q: New Gaskets?  Napalmsteak 4 months ago


    Where can i get new gaskets for this? Mine rotted away and I need new ones.

    • A: You will be able to use any universal exhaust gaskets. Just make sure that you measure your gaskets before ordering

      Luis L. 3 months ago
  • Q: Does it fit perfectly  BrakoQc 1 year 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. 1 year ago
  • Q: Q300  A1_Cardoza 2 years 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 2 years ago
  • Q: Invidia Q300 exhaust and DP  Sthornton 2 years 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 2 years 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