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K&N FIPK Cold Air Intake (99-04 3.8L & 3.9L V6)

82 Reviews
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  • Item #92004
  • MPN# 57-2532

  • Market Price $292.99
  • You Save 17% ($49.00)
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Product Videos Customer Photos
  • Improves Horsepower and Acceleration.
  • Filters Out Harmful Contaminants.
  • Simple Installation.
  • CARB EO Number: D-269-28 (Not Applicable to 3.9L V6s)
  • Fits 1999-2004 3.8L & 3.9L V6 Mustangs.
Improves Horsepower. The K&N "Fuel Injection Performance Kit" (FIPK for short) Air Intake Kit completely replaces your stock 1999-2004 3.8L & 3.9L V6 Mustang's restrictive factory air box and paper filter. This FIPK Cold Air Intake features a high flow K&N filter assembly and intake tube for a noticeable increase in horsepower and acceleration, all while still providing excellent filtration.

Filters Harmful Contaminants. The supplied K&N Filter successfully filter's out harmful contaminants with its unique layered design. K&N Air Filters are made up of layers of specially treated cotton gauze that are sandwiched between two epoxy-coated aluminum wire screens for durability. K&N uses a specially formulated grade of oil to treat the cotton gauze layers which causes a tackiness throughout the cotton’s microscopic strands creating a powerful filtering media that ensures engine protection.

Straight Forward Installation. With commonly available basic hand tools, the K&N FIPK CAI requires no extra modifications for a simple, straight forward installation.

Application. This K&N FIPK Cold Air Intake is specifically designed for use on 1999-2004 3.8L and 3.9L V6 Mustangs.

Note: Coupon codes cannot be applied to this product.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • (2) Two #4 Hose Clamps
  • (1) One Silicone Hose
  • (1) One Hose 10mm x 10"L
  • (1) One 3/8" Vent
  • (1) One Grommet
  • (1) One Plug
  • (1) One Silicone Step Hose
  • (1) One #56 Hose Clamp
  • (1) One #48 Hose Clamp
  • (4) Four 6mm Hex Bolts
  • (4) Four 6mm Wave Washers
  • (1) One "F" Bracket
  • (2) Two 6mm Nylock Nuts
  • (4) Four1/4" Flat Washers
  • (2) Two Gaskets
  • (1) One 26"L Edge Trim
  • (2) Two 6mm Hex Bolts
  • (1) One Adapter
  • (1) One #104 Hose Clamp
Installation Info
Tech Specs
Cold Air Intake Specifications
Year/Model: 1999-2004 V6 Filter Placement: Engine Bay
Material: High Density Polyethylene Finish: Black
Manufacture: K&N Computer Tune Required: No
Will it fit my Mustang?
  • V6 - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

great addition

With so many CAIs to choose from I asked my mechanic buddy and he said go with the K&N. The video instruction is for the BBK CAI, so follow the instructions that come with the kit. Easy enough to follow. ...

Read More
Helpful (2)

Mustang 04 V6 K&N Air Intake

makes a lot of difference, definitively gain HP... easy to install

Helpful (1)

Read All 82 Reviews
Overall Rating 4.7 out of 5 stars


Customer Photos (56) View All Photos

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9 Questions / 4 Answers

Ask a Question

it will need this k&n a tuner


  • This K&N Cold Air Intake does not require a tune for installation. That said, you'd obtain maximum gains by combining the CAI with a custom tune.


    Good Answer (1) (0)

Show 1 more answer Question Resolved

how much horsepower will this give my 3.8L?


  • This K&N will give gain increases of up to 10 HP and 15 TQ. Hope this helps!


    Good Answer (0) (0)

Question Resolved

Can the Filter be reused/Cleanable?


  • Yes. K N filters are cleanable.. and typically require cleaning at 25k intervals.


    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

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Customer Reviews (82) Write a Review

Overall Rating 4.7

out of 5 stars

  • 4/5

    Installation Time: Less than 1 Hour

    August 14, 2014

    Mustang 04 V6 K&N Air Intake

    makes a lot of difference, definitively gain HP... easy to install


    Year: 2004 Model: V6 Driving Style: Race 'Stangs I have owned: 2 montreal, canada

    Helpful (1) (0)

  • 5/5

    April 28, 2009

    great addition

    With so many CAIs to choose from I asked my mechanic buddy and he said go with the K&N. The video instruction is for the BBK CAI, so follow the instructions that come with the kit. Easy enough to follow. The CAI gave a notable increase with my magnaflow set up and of course the aggressive hiss noise.

    Alan L

    Helpful (2) (0)

  • 5/5

    February 27, 2010

    Worth it

    A cold air intake is a easy way to get a decent amount of horsepower, but there is far too many to choose from. I used to have BBK and it was alright. After putting this on you can tell where your money goes. K&N is the best. Gave me more response and slightly more pull.


    Helpful (34) (1)

  • 5/5

    June 17, 2010

    Mustang 6

    Great Product, the filter K@N supplies is monstrous and the sound is alot better and throatier in the higher revs.which is what I really wanted out of the intake. Not quite a V8 but closer. To notice any power gains you really have to get a tune trust me


    Helpful (17) (0)

  • 4/5

    January 25, 2010

    Well Worth It

    I have a 40th Aniv. Mustang V6, so naturally I wanted a V8 and figured this would help me on my way to getting close. It deff added a big increase of horsepower and my car sounds much deeper. The whistle of course is always a nice touch too. Only problem i have with it is that it makes the car really jumpy at times when you let off the gas and stay at an inbetween speed. But overall well worth it and a great part to choose. Thanks AM.


    Helpful (13) (0)

  • 5/5

    April 26, 2010

    best intake hands down

    after about a month of trying to decide which intake to go with chose k&n and i no i made the best choice adds on a few horses and gives it a bit more of a growl especially if you have and dual exh.....if your undecided go with this product!!


    Helpful (12) (2)

  • 4/5

    July 25, 2009

    High quality intake

    Wow, how cool! Fits my 2001 V6 like a glove. I noticed a slight gain in power, nothing too big. You can hear a sucking sound inside the car when you step on the gas, but the sound is nothing to rave about. BUT, hard revs in neutral produce a very cool sound, similar to a turbo. A little expensive, but you pay for a good product. K&N says it's a 6.something HP gain. So four stars for price/HP ratio.


    Year: 2001 Model: V6

    Helpful (5) (0)

  • 5/5

    March 18, 2011

    K&N CAI for 99-04 V6

    I've had the CAI on my 2004 3.9L V6 since Sept 2009. I noticed an immediant difference in response, sound, and efficency. I went from 27mpg to 29mpg.

    Steven T.

    Year: 2004 Model: V6 Driving Style: Daily Driver

    Helpful (6) (1)

  • 5/5

    March 07, 2009

    A MUST!!

    This K&N is a must for any car! It makes the car breathe so much better. Very easy to install, anyone can do it and it fit like a glove.


    Helpful (3) (0)

  • 5/5

    November 30, 2010

    worth the money

    i took a while to decide on and intake, but ended up going for the K&N. so glad i did, when you make quick shifts and floor it at high revs you can really hear it suck in the cold air in and whistle. Install was relatively easy, took me 2 hours but i didn't want to mess anything up. Don't waste your time with the others, just go for the best.


    Driving Style: Daily Driver

    Helpful (4) (1)

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