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K&N Intake Replacement Filter (99-04 V6)

Item 384134
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Ship to: Ashburn - 20149
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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 1999-2004 V6 Mustangs w/ K&N FIPK Cold Air Intake Part # 57-2532 Installed


      Reclaim Lost HP and Acceleration. Reclaim the lost power and acceleration from your 3.8L or 3.9L V6 by replacing the filthy, clogged up filter element on your current K&N Cold Air with a new K&N Intake Replacement Air Filter. This filter will protect your Mustang's engine against dust and dirt and the rubber flanges will absorb any unwanted vibrations, making this one great replacement air filter.

      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 1999-2004 3.8L or 3.9L V6 Mustangs with the K&N FIPK Cold Air Intake part# 57-2532 installed.

      Note: Coupon codes cannot be applied to this product.

      Fitment: 1999 2000 2001 2002 2003 2004 Details

      MPN# RC-4940

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (11)

      Write a Review

      Ratings Summary

      5 out of 5 overall rating from 11 customers

      Installation Time: Less than 1 Hour

      • May 24, 2019

        5 2003 V6 - Emibeast10 Installation Time: Less than 1 Hour

        Perfect fit

        Got it delivered fast and it was a perfect fit. It only takes a few minutes to install and the car sounds and feels awesome with horse power gains that feel at the pedal.

        Helpful (0)
      • August 14, 2018

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


        Big look , better performance, sounds different. I like it

        Helpful (8)
      • March 07, 2018

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

        K N

        Luv the filter. Not sure way the first one all of a sudden didn't fit anymore. Glad I was able to replaced the filter instead replacing the whole cold air intake unit. Thanks American Muscle

        Helpful (9)
      • July 04, 2017

        5 2004 V6 - LupeG

        Works great

        Really needed a new air filter and the I ordered and was delivered pretty quickly

        Helpful (9)
      • April 08, 2017

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

        Great filter

        Brought my car back to life great replacement thankyou.

        Helpful (10)
      • September 04, 2016

        5 1999 V6 - eddie


        I wanted my car to gain alittle more power so I decided to buy the N/K intake and filter I love how the car performance and how it looks under the hood .no tuner is require .its very simple to install

        Helpful (11)
      • August 15, 2016

        5 2004 V6 - ayaycurt10

        Great Filter and Fast Shipping

        The KandN that was on the car when I purchased it was filthy and dark black. So ordered a new one here instead of bothering to clean it and very satisfied. It's like the difference between night and day.

        Helpful (11)
      • July 20, 2016

        5 2002 V6 - Rider


        I currently order a new filter because my old one was dirty. I was amazed that I receive it the next day Great customer service !!!!

        Helpful (11)
      • June 12, 2016

        5 2003 V6 - 03silversteed Installation Time: Less than 1 Hour


        This is perfect replacement. I could instantly tell my car was running better when I replaced the old one.

        Helpful (10)
      • June 06, 2016

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

        Replacing Air Filter

        The replacement KandN Filter fit perfectly and I was able to get rid the old one which was black and bent.

        Helpful (11)

      Questions & Answers (2 answers)

      2 Top Rated Questions

      Could this fit on the stock intake?

      • This filter is designed for the K&N Cold Air Intake. Unfortunately it will not fit the stock intake.

      Helpful (0)

      what is the diameter of the clamp

      • The diameter of the clamp is approximately 6 inches.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Replacement Air Filter

      Tech Specs

      Will It Fit My Mustang

      • V6 - 99, 00, 01, 02, 03, 04

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