Process West Cold Air Intake 72mm Big MAF

Part #: PRW PWCAI05
( 1 reviews )



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Brand: Process West
Carb Exempt: [

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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: Red
Filter Element Type: Wet
Filter Material: Cotton
Filter Reusable: Yes
Includes Airbox: No
Piping Color: Black
Piping Material: Aluminum
Tuning Required: Yes
Return Policy:

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Subaru Impreza
WRX STI 2004, 2005, 2006, 2007WRX STI Limited 2007WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007

Making more power than the stock 65mm MAF can handle? This Process West 72mm Big MAF intake is the answer you seek!

This intake is the same design as the Process West 65mm intake, with a larger ID to allow for more flow.

It is fabricated from lightweight CNC mandrel bent aluminum tube and has a CNC machined air flow meter mount. It comes complete with a K&N high flow air filter. The unit is painted black for a flawless finish.

Process West has taken the extra few steps to ensure smooth, consistent and abundant air flow. The Process West Cold Air Intake won't leave you disappointed!

Your car WILL need to be re-tuned to use this intake. Do not attempt to use this without a tune.
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Verified Purchase
Very nice intake
mtondr71514 4 years ago
This is a great quality piece. I love the location of the maf, Process West really designed a good quality product. The turbo spool up is definitely louder with this intake but not at an obnoxious level. Don't hesitate to buy!


  • AnswerQ: V-mount  jainuss 1 year ago

    I did see the other FMIC questions but any ideas if this intake will fit with the Process west V-mount?

    • A: Yes this intake will fit great with the V-mount from Process West.

      Nick S. 1 year ago

  • AnswerQ: Too much flow?  capilarybinkie 2 years ago

    Including a pro-tune, will this be too big of a diameter for a stage 2 STi? Or would it be better to use 65mm instead?(Also pro-tuned)

    • A: I would recommend staying with the 65mm for your application.

      Spencer H. 2 years ago

  • AnswerQ: tmic fitment?????  Tanner K. 2 years ago

    would anyone know what FMIC's would work with this CAI? thanks!

    • A: Unfortunately we do not have any front mounts confirmed specifically with this intake.

      Nick S. 2 years ago

  • AnswerQ: Power levels  nickWRX 3 years ago

    How much hp should I be making to be able to use this intake

    • A: There is no required hp for this intake, You can run it at any power level but this intake will require a tune when running on the vehicle.

      Kyle A. 3 years ago

  • AnswerQ: length to the turbo inlet  Cartel266 3 years ago

    Does this need anything else to hook up to the turbo inlet, it looks like it doesn't but I just want to make sure.

    • A: Nothing else is required.

      Kirill C. 3 years ago