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K&N Series 57 FIPK Cold Air Intake (99-04 V6)

Item 92004
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    Features, Video & Details

    • Add 10 HP and 15 TQ with Optional Tune
    • 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

    Review & Installation Video

    Review & Install Video

    Hey everyone, Dave from AmericanMuscle, and today I have the K&N cold air intake kit, designed to fit the 99-04 Mustang V6. Now this kit fits both the 3.8 and the 3.9L and from K&N, you’re going to get a high flow reusable filter, surrounded by a heat shield to help keep out engine heat and exhaust heat making the air cooler and more dense to make you more power. After it flows through the filter you’re then going to notice the sleek black plastic tube, that comes with all the accessories and hardware you need for a quick at home installation. This kit is going to flow a ton more air and with the reusable filter actually save you money over time. So what we’re going to do today before we install it, is take our automatic V6 on the dyno, and get some baseline numbers, so when we install this kit, we can see what sort of performance gains we pick up. Our 2000 automatic V6 made 145 horse power and 170 ft/lbs of torque. Now our stock dyno runs are out of the way, we’re going to go ahead and uninstall the factory unit and reinstall the K&N cold air intake kit. It comes with all the supplied hardware you need and should take us about an hour. Now that our K&N cold air intake kit is installed we’re going to load up our 93 octane bama performance tune so when we run it back on the dyno again, we can see what kind of gains we picked up. A custom tune from bama performance adjusts engine parameters to maximize performance, through optimized air/fuel ratio, spark advance, enhanced throttle response ,and for automatics, increased shift firmness and adjustable shift points. Our car produced 155 horse power and 183 ft/lbs of torque with our K&N intake and our bama tune installed, that’s a gain of 10 horse power, and 15 ft/lbs of torque throughout our curve. It took us less than an hour with all the supplied couplers and hardware that K&N supplied to install the new cold air intake kit, the way it mounts under the hood allows you to hear, and see a lot of benefits from installing the kit. When we re-ran it on the dyno after we installed it and we used our bama tune, we produced 10 more horse power and 15 more ft/lbs of torque throughout the curve.

    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

    MPN# 57-2532

    CA Residents: WARNING: Cancer and Reproductive Harm -

    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?

      Customer Photos (67) Submit Your Photo

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        Questions & Answers (19)

        5 Top Rated Questions

        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!

        Helpful (4)

        Will this connect to the BBK 65 mm throttle body?

        • This will be able to connect to the BBK 65mm throttle body.

        Helpful (3)

        the secer on this wont plug into the stock plug what plug should i get

        • We do apologize you are having this issue! Please contact us directly and we'd be happy to assist you in troubleshooting! Our contact information can be found here:

        Helpful (1)

        it will pass the smog?

        • The K&N FIPK Cold Air Intake will be CARB legal for the 99-03 V6 models.

        Helpful (1)

        can this fit on a v8 engine

        • Unfortunately the K&N Series 57 Cold Air Intake is designed to fit 99-04 V6 models and will not work with a V8 engine.

        Helpful (1)
        Post Your Question
        10 More Questions
        Is this K N series 57 FIPK CAI 50 state legal and if so does it come with paperwork or a sticker saying so? 1 answer
        does this cai give more horsepower than the BBK Cold Air Intake when they are both tuned? also will it fit on a v8 engine 1 answer
        does this have more hp than the BBK Cold Air Intake 1 answer
        I have this air filter on my 2002 Mustang, and recently the F bracket I have holding up everything broke and I'm looking for a replacement. Does anyone know where I can get one? 1 answer
        is this compatable with the mac 73mm mass air meter? 1 answer
        so im selling my used cai and someone asked me if it will work on their 03 f150 v6? 1 answer
        Will this CAI accommodate the Poweraid Torque Spacer? I have had issues clearing the strut mount with my current intake. 1 answer
        I have a 03-04 cobra hood on my mustang. Should have to worry about water getting onto the filter in the rain? 1 answer
        well this fit my 2004 GT ? 1 answer
        will this fit on a 65mm throttle body? 1 answer

          Customer Reviews (100+) Write a Review

          Ratings Summary

          4.7 out of 5 overall rating from 100+ customers

          Installation Time: Less than 1 Hour

          Installation Cost: 0-$100

          • October 21, 2019

            5 1999 V6 - Cole Installation Time: Afternoon

            Slight difference

            Without a tune, this plus a larger throttle body makes a noticeable difference at the top of 3rd gear.

            Helpful (0)
          • July 26, 2019

            3 2001 V6 - JVincent Installation Time: Less than 1 Hour

            K N Series 57 FIPK Cold Air Intake

            I purchased this Cold Air filter and installed it a couple of weeks ago. The Cold Air filter looks great and works fine however it seems that the fit was slightly off where the filter and pipe connect.

            Helpful (0)
          • April 07, 2019

            4 2004 V6 - Dill Installation Time: Less than 1 Hour

            K N

            Fit perfectly, super easy installation. Looks and sounds good.

            Helpful (0)
          • January 21, 2019

            5 2002 V6 - PatrickM Installation Time: Afternoon

            happy customer

            very much happy with result. did have some really high hopes for the sound difference, but probably was over-hyping it because i haven't gotten a tuner. so un-tuned still very very happy and was well worth the money. i gave performance a 3 star because i want to say its giving better performance but idk if i can really tell just yet. it may be too early to say iv been trying not drive "too" aggressive so the cpu can do its thing. as far as looks and the woosh sound lol is very fun to show off when poping the hood. definitely a 5 star

            Helpful (2)
          • January 18, 2019

            5 2002 V6 - EmileS Installation Time: Less than 1 Hour

            Was sceptical but now a believer.

            Car is faster has better performance ,handle fast. Love it worth the money.

            Helpful (2)
          • August 02, 2018

            5 2004 V6 - Cws11 Installation Time: Less than 1 Hour

            K N filter

            Install went off well. The instructions are clear. Really improves appearance under the hood. I chose KandN because the filter is in the compartment. Plus they have a good product.

            Helpful (7)
          • May 22, 2018

            5 2004 V6 - ss4jbroly Installation Time: Less than 1 Hour

            It's the best fit for my Mustang.

            All Mustangs need to come stock with a cold air intake. Really like kandN and my new setup I have on my v6 Mustang.

            Helpful (7)
          • May 18, 2018

            5 2004 V6 - StephenB Installation Time: Afternoon

            04 mustang v6 wake-up call

            Fit was perfect : everything I hoped it would be , really wakes up a motor.

            Helpful (7)
          • February 05, 2018

            5 2001 V6 - DylanG Installation Time: Less than 1 Hour

            Not really a cold air intake

            Not sure why everybody’s stressing how worth the money this thing is. Its just a short cheap feeling plastic tube, and honestly is it even a cold air intake? Its sucking air from the engine bay. Our stock intakes suck from outside, so if anything think of it as a hot air intake. That being said, its got monster air flow. Fatty cone, and good luck ever replacing the couplings, the diameter is insane. You can hear the suck from punching the gas inside the car with the windows up. I wouldnt even care if it made no performance gains, the sucking noice alone would be worth the time to install. Idk if I would’ve paid that price, I got mine for free. I’d rather spend the money towards a tuner and pick up a cheap intake that pulls air from outside the engine bay. Fatty cone though, this filters big.

            Helpful (8)
          • December 04, 2017

            5 2000 V6 - Anthony Installation Time: Less than 1 Hour

            Easy install and better performance

            A bit pricey but once it’s installed you won’t regret it. Really let’s the car breathe and accelerate quicker! Well worth it

            Helpful (9)
          • October 08, 2017

            5 2000 V6 - RamiroV

            Ramiro V

            Great product looks good on the engine bay and good performance as well. Really recomend it.

            Helpful (8)
          • August 23, 2017

            5 2004 V6 - Kirsten Installation Time: Afternoon


            This was exactly what I needed and expected. Looks amazing and sounds good too.

            Helpful (8)
          • July 12, 2017

            5 1999 V6 - Chris Installation Time: Less than 1 Hour


            First mod under the hood and it was a success. I immediately hear the difference in sound and throttle response. She sounds a lot closer to a v8 comparing with the Mac dual exhaust kit from AM. Happy with my order.

            Helpful (8)
          • July 11, 2017

            5 2002 V6 - RigoC Installation Time: Less than 1 Hour

            Great intake

            Noticeable gain in power, I love the sound at high RPMS. It even sounds good while the car is parked, you can hear the intake sucking in air! The only problem I ran into was attaching the bracket to the A/C compressor, other than that, great intake!

            Helpful (8)
          • July 06, 2017

            5 2004 V6 - CalvinM Installation Time: Less than 1 Hour

            Great intake

            Received the kandn intake in a timely manner and installed it in 40 minutes on my v6 3.8 runs like a charm, instantly noticed the change in acceleration and sound difference in the engine bay. All and all very happy with the purchase and would recommend this intake to anyone looking for an upgrade.

            Helpful (8)
          • July 01, 2017

            5 2004 V6 - Mike Installation Time: Less than 1 Hour

            K N Air Intake

            With the KandN Air Intake quickly can notice the sound and performance and about the installation was very easy

            Helpful (8)
          • June 16, 2017

            5 2001 V6 - JFarewell Installation Time: Less than 1 Hour

            Pricey, but worth it

            I had originally purchased the SR Performance intake sold here, and it worked fine up until I purchased a Torque Spacer. This KandN intake is shaped in such a way that it will accommodate the extra space needed for that spacer, and still fit in the engine bay with no modification. The construction quality is second to none, and you cant beat the sound it makes when your driving the car. It really helped open up the engine over the factory and SR Performance air boxes. Would recommend to anyone looking for a good starting point in the performance world.

            Helpful (9)
          • November 11, 2016

            5 2003 V6 - retiredmarine Installation Time: Less than 1 Hour

            A nice neat package

            I was pleased with the KandN setup. It is a good quality product. and it fits very well. instructions an illustrations enable easy install

            Helpful (7)
          • September 24, 2016

            5 2001 V6 - justav6

            K N cold air intake

            I really like this product better than the other one I had on my car. I get better performance with this one.

            Helpful (7)
          • July 26, 2016

            5 2002 V6 - Stangsforlife

            Cold air intake

            Easy install couldn't be happier with the added power

            Helpful (6)

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