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

Item 384135
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 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 -


      Customer Reviews (5)

      Write a Review

      Ratings Summary

      5.0 out of 5 overall rating from 5 customers

      Installation Time: Less than 1 Hour

      • March 27, 2020

        5 2003 Cobra - Owu26 Installation Time: Less than 1 Hour

        K N intake

        Nice upgrade, helps engine breath and increases blower whine.

        Helpful (0)
      • September 04, 2017

        5 2003 Cobra - KalebS Installation Time: Less than 1 Hour


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

        Helpful (11)
      • August 31, 2017

        5 2003 Cobra - Calvaryman Installation Time: Less than 1 Hour

        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.

        Helpful (11)
      • June 22, 2017

        5 2003 Cobra - KalebS Installation Time: Less than 1 Hour


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

        Helpful (11)
      • February 24, 2016

        5 2001 Other - Ralph Installation Time: Less than 1 Hour

        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.

        Helpful (12)

      Questions & Answers (2 answers)

      2 Top Rated Questions

      Does this filter come pre-oiled?

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

      Helpful (1)

      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)
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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Replacement Air Filter

      Tech Specs

      Will It Fit My Mustang

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