Cosworth High Flow Air Intake System

Part #: COS1 20019422
( 8 reviews )



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Return Policy | Shipping



Brand: Cosworth
Carb Exempt: [

Carb Restricted Shipping

If an Item is CARB exempt it means that it has undergone an engineering evaluation by CARB (California Air Recourses Board) and is shown to not increase vehicle emissions. If an item is CARB Exempt it will have an EO (Executive Order) number associated with it. Even if an item has an EO number it is not guaranteed to be CARB exempt for your vehicle. It is important to confirm that your Year Make and Model fall under the CARB EO number associated with the part. That can be confirmed either by checking the CARB website or the manufacturers website.
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Filter Color: Blue
Filter Element Type: Dry
Filter Material: Cotton
Filter Reusable: Yes
Includes Airbox: Yes
Piping Color: Silver
Piping Material: Aluminum
Tuning Required: No
Mfgr. Warranty: 1 Year Limited Warranty
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.


Subaru Impreza
WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 20142.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 2010

Cosworth's High Flow Intake Systems feature increased surface area of the element, large smooth radius bent aluminum inlet tubes for superior air flow management coupled with a high flow air filter for maximum air flow and performance.

Each kit includes an integrated heat shield designed to isolate the air intake from engine heat - delivering cold air into the engine for superior power conversion. The filter element is large, conical in shape and engineered to dramatically reduce intake restriction resulting in additional power and torque.
This product has no user uploaded media. You can upload your photo or video of your install by posting a review.




Costly, but worth it
joe.p 10 months ago
Easy install, took just under an hour. Instructions are proper. Amazing noise, installed with Perrin turbo inlet tube, mates up nicely. Everything about this product feels solid. And as a side note, for those of you worried about water intake, the Injen 1034 Hydro-Shield fits perfectly over Cosworth's supplied filter.
Verified Purchase
great product
bogo101188321 12 months ago
Ive had this in my car for about five months now, and im still loving it. love the sound, the extra power; not a ton, but definitely noticeable. supper easy to install, but if your from CA and time for a smog just remember to keep your stock CAI because this item wont pass smog. highly recommend anyone whos shopping for a CAI to pick up a cosworth.
Verified Purchase
High quality intake with wonderful sound
vXTotalChaosXv 1 year ago
Installed this intake on my 2009 WRX and I absolutely love it. No CELs or drivability issues after a few days but will most likely have my tuner work on my MAF scaling just to be safe. Install took about 45 minutes and I love have something say COSWORTH under my hood. Would recommend this product to anyone who doesn't want a CAI and wants a Cobb alternative.
Verified Purchase
Great product
codyrimel25905 2 years ago
This is a well built product and went on perfect. In the factory picture it shows the filter going inside the fender.. I would say 1/2 of the filter is in the fender if that and is visable from the engine bay.. vs the aem completely in the fender. It is a good mix of the SF and cold air..
Verified Purchase
Great product
Jtamm93134 2 years ago
I received the CAI and install took less than an hour, the hardest part was trying to slide the silicone boot over the turbo inlet, it's a tight fit and when the air box is tightened down it doesn't line up flush with the inlet tube. Had to loosen the air box to get wiggle room and some elbow grease to slide it on enough. Should also add on the 11-13 wrx there is only one bolt on the frame for the bracket to secure to but I haven't had any issues yet with it wiggling around. This product sounds amazing, looks awesome and I can feel a little more responsiveness from the throttle. I kinda regret spending over $250 on a bov when I should have gotten this. Overall I'm very satisfied with this product


  • AnswerQ: mid range  cheatobandito92053 6 months ago

    I just bought this intake for my 2014 wrx and it has a great sound to it but it feels like i lost power in the mid range between 3-5rpm. i swear it feels like my car is slower now. i installed it and re installed it to check and make sure i had no loose fittings. Any ideas what is wrong?

    • A: A proper tune would be recommended, although tuning is not required for intakes there is always more benefits to having a vehicle tuned for it.

      Nick S. 6 months ago

  • AnswerQ: Warranty  nesqik 1 year ago

    Will this void factory warranty ?

    • A: It is best to contact your local dealership regarding factory warranty.

      Kyle A. 1 year ago

  • AnswerQ: picture  tfanuzzi4040643 1 year ago

    any possible way you can post a picture of how this intake sits in a 08-14 car seems much shorter then cai and lovger then a sri does it sit low or does it sit into the hole in the fender behind stock air box when you install this any help would be apreciated

    • A: Take a look at the photo section and you will see the photo we just posted for you! :)

      Spencer H. 1 year ago

  • AnswerQ: California CARB approved??  Anthony Saracino 1 year ago

    Is this intake smoggable in California

    • A: This intake will not be CARB approved.

      Kyle A. 1 year ago

  • AnswerQ: air to fuel  CCooperwrx 1 year ago

    so i have this intake on my car with the stock tune will this intake start messing with my A/F ratios or will it be ok and also have the invidia n1 race catback exaust 2008 wrx

    • A: We recommend getting a tune to run with this intake.

      Kyle A. 1 year ago