Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily

K&N Intake Replacement Filter (03-04 Cobra)

Item 384135
Market Price $115.99 You Save 35% ($41.00)
Our Price


FREE Shipping

Will this fit your Vehicle?

Change Vehicle Help?
Update or Change Vehicle
In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • K&N Replacement Air Filter
    • Improves HP and Acceleration
    • Round Tapered Design
    • Cotton Gauze High Flow Filter
    • Chrome Metal Top
    • Washable and Reusable
    • Designed for the K&N Cold Air Intake
    • Fits 2003-2004 Cobra w/ K&N FIPK Cold Air Intake Part # 57-2545 Installed
    Reclaim Lost HP and Acceleration. Reclaim lost horses and acceleration from your SVT Cobra by replacing that filthy dirty air filter element with a new K&N Intake Replacement Air Filter. This filter offers exceptional protection against dust and dirt and with its high flow characteristics, this is the perfect filter replacement for your Mustang.

    Superior Filtration. This K&N Replacement Air Filter provides superior air filtration and successfully filters out harmful contaminants with its high-flow cotton gauze material. 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. The filter has been pre-treated with specially formulated grade K&N oil and is ready to be installed right out of the box.

    Washable, Reusable Filter. K&N design their high flow air filters to be reusable. That means there is no need to buy a new filter every few thousand miles. You can just wash the filter, re-oil it and save money with a K&N Filter Recharge Kit.

    Application. This K&N Replacement Air Filter is designed to be a direct fit replacement for the 2003-2004 4V SVT Cobra Mustangs with the K&N FIPK Cold Air Intake part# 57-2545 installed.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 2003 2004 Details

    MPN# RC-5046

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Replacement Air Filter
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (2) Submit Your Photo

      View All 2 Photos

        Questions & Answers (2)

        2 Top Rated Questions

        Does this filter come pre-oiled?

        • The K&N Intake Replacement Filter will come pre-oiled in the box.

        Helpful (0)

        can you provide dimensions or K N part #.

        • The K&N Intake Replacement Filter K&N part number is listed under the MPN Number, RC-5046. The product dimensions are as follows: Top Outside Diameter: 4.5" Base Outside Diameter: 7.5" Height: 9" Flange Length 0.625" Flange Inside Diameter: 6"

        Helpful (0)
        Post Your Question

          Customer Reviews (4) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Performance Gain 4 4
          • Fit 5 5

          • 5/5

            Installation Time: Less than 1 Hour

            September 04, 2017


            I'm glad to find the replacement filter for the kandn setup so I can interchange my filters


            Year: 2003 Submodel: Cobra

            Helpful (11)

          • 5/5

            Installation Time: Less than 1 Hour

            August 31, 2017

            Efficiency and low maintenance

            For my car KandN has the only filter for my car. It's very efficient and has low maintenance. Very few products today you can use over and over again if you take care of it.


            Year: 2003 Submodel: Cobra

            Helpful (11)

          • 5/5

            Installation Time: Less than 1 Hour

            June 22, 2017


            I had been searching for the replacement filter and American muscle had it. I was happy to find it and it showed up fast.


            Year: 2003 Submodel: Cobra

            Helpful (11)

          • 5/5

            Installation Time: Less than 1 Hour

            February 24, 2016

            good replacement

            my old filter was really dirty and actually shriveling up it was so bad. this replacement is a very noticeable difference all across the board. it was much needed.


            Year: 2001 Submodel: Other

            Helpful (12)

          Related Mustang Categories