Injen Cold Air Intake Polished

Part #: INJ SP1204P
( 5 reviews )


MSRP: $374.64


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Out of Stock
Orders placed today should ship by 06/10/2016



Brand: Injen
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: Wet
Filter Material: Cotton
Filter Reusable: Yes
Includes Airbox: No
Piping Color: Polished
Piping Material: Aluminum
Tuning Required: No
Mfgr. Warranty: Limited Lifetime 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 STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX 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

The Injen SP Series Air Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio. The SP series does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series is The World's First Tuned Intake System.



Verified Purchase
Great look and noise
Krazy136 2 years ago
Awesome sound and lets you hear the stock Blow off valve as well. Install took about 10 minutes, haven't noticed a huge difference power wise without a tune but have noticed better throttle response. I would recommend getting a hydro shield from injen as well.
Verified Purchase
Love the look.
David1942703171 2 years ago
Great COI, love the look and sound. Not into colors so the chrome looks great. The install couldn't be any easier
Verified Purchase
It's unbelieveable, really
lsnicholas188951 5 years ago
I had installed the Injen tuned CAI on my 2008 WRX about a month ago. I've never used an Injen CAI but at this moment in time, I wont use anything but Injen. It's an incredible product. An easy install even for the novice. Actually factory airbox was harder to get out then installing the CAI. And the beautifully polished finish gives a brilliant shine under the hood. A side note, the MAF sensor mount on the piping was a perfect fit. Everything made a great seal, no leaks from what i can tell. And for those who like noise. It sounds phenomenal!!! Since this mounts outside the frame rail, a good idea if purchasing this product is to get a hydroguard pre filter. the area the filter sits will collect water. And none of us want to deal with a chance of sucking water into our intakes... Overall, I have no regrets Thanks Injen and Rally Sport Direct...

bigbcraig 6 years ago
I've had this for over year and a half, and am very safisfied. My main attraction to this product is the fact that it uses an AMSOIL high-efficiency, cleanable dry air filter. As "Anonymous" said, it makes a great difference in noise - it's never very loud but lets in some more engine sound and much more turbo noises, from sucking on spool to hissing spooled, to the stock BOV being very noticeable. The box said it makes 20 HP or something, I assume that's stock vs. tuned + intake - I didn't expect any power from this and didn't feel anything extraordinary. Throttle response / spool does seem to be somewhat quicker. I'm not tuned and have no other engine mods; intakes are generally regarded as a poor first power mod because of tuning woes they can cause; I have not run a wideband with this but can say that no CELs have been thrown and the exhaust tip showed it is running similarly rich as stock was. Installation is easy, all hardware was included and worked without too much effort; the MAF fits perfectly, and is sealed on the tube and sitting in the center. The intake really opens up the engine bay which is nice. Heat shield works well, the filter area is never hot. My one complaint is that you have to fiddle with it quite a bit to take the filter off if you want to clean it, with the easiest way probably being to take the whole tube out.
Verified Purchase

guest55c8f15ccaae52f460ae9d33 6 years ago
good intake makes a large sucking noise when turbo is in use and makes your stock bov loud enough you can hear it


  • AnswerQ: pre filter  maeserocks79916 3 months ago

    if im looking for a pre filter so no water gets in, what can i get that fits this intake

    • A: We are unable to confirm fitment of any pre-filters for this intake system. I have gone ahead and listed the dimensions of the filter to assist in your search though. Dimensions: 2.75" opening, 5" base diameter, 5" height and 4" top diameter

      Tyler.G 3 months ago

  • AnswerQ: afta maf hose  chad 4 months ago

    is a afta maf hose required to install this cold air intake?

    • A: No, all required piping and hosing is included.

      Josh P. 4 months ago

  • AnswerQ: Engine Life  DavidB007 2 years ago

    Will this overall effect the engine life on my car? I heard things about if you run into huge water puddles that can cause an issue but if your careful, will this cause any harm or stress on the engine?

    • A: Injen states that tuning is not required, however you want to verify everything is running proper. We suggest to get tunes with any intake.

      Kyle A. 2 years ago

  • AnswerQ: Intake  Raymond 3 years ago

    Do I need to tune my 2013 WRX in order to have this. Which intake would you recommend without a tune?

    • A: We at Rallysportdirect recommend a tune with any intake system we offer. The manufacture may say otherwise, this will be listed on the product details on the right hand side of every product page. Thank you.

      Sterling W. 3 years ago

  • AnswerQ: Air filter  boikewrx78246 3 years ago

    What is the part number for the air filter on this? I've had this intake for almost 2 years and I'd rather just buy a new filter than clean the current one.

    • A: The replacement filter part number would be 1013-BB

      Kirill C. 3 years ago