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K&N Drop-In Replacement Air Filter (96-04 V8)

Item 92013
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      Product Information

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


      • Improves Horsepower and Acceleration.
      • Filters Out Harmful Contaminants.
      • Easy Drop-In Replacement.
      • Fits 96-04 GT/Cobra, 03-04 Mach 1 and 01 Bullitt Stock Air Box.


      Improves Horsepower. Now you can improve your 1996-2004 GT/Cobra, 03-04 Mach 1 and 01 Bullitt Mustang's performance with a K&N Drop-in Replacement Air Filter. Simply replace your stock restrictive paper air filter with a new high flow K&N air filter and feel an increase in horsepower and acceleration while still providing excellent filtration.

      Filters out harmful contaminants. The K&N Drop-in Air Filter filters 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.

      Drop-In Replacement. K&N designed this Air filter to be a direct drop-in replacement for the stock 96-04 GT/Cobra, 03-04 Mach 1 & 01 Bullitt Mustang's air box, with no cutting or trimming required.

      Note: Coupon codes cannot be applied to this product.

      Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

      MPN# E-0945

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (31)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 31 customers

      Installation Time: Less than 1 Hour

      • April 10, 2019

        4 2002 GT - ImRespawn Installation Time: Less than 1 Hour

        Good but Pricey

        Works as intended. Getting the old air filter out and the this one in was simple, it fit perfectly. However the clamps to close the filter housing can be a little tricky so just warning anyone who has never replaced an air filter before. This filter is expensive (especially when factoring in Canadian shipping), but the good side is that this one is re-usuable. It was partly worth the money considering my old filter was extremely dirty, but at the end of the day its just an air filter, and wont give any noticeable increase in power. At the end of the day, buy this if you need a new air filter and don't wanna worry about having to get a new one, but if you want performance, just get an intake.

        Helpful (0)
      • March 26, 2019

        5 2004 GT - Dee2002 Installation Time: Less than 1 Hour

        K N filter

        Easy to install. Always used the KandN in all my vehicles. Nice to know I can just clean recharge and go. Don’t really have to purchase another air filter. Save money in the long run.

        Helpful (0)
      • February 05, 2019

        5 1999 GT - Javi Installation Time: Less than 1 Hour

        K N Air Filter 99 GT

        KandN air filter is way better than the paper filters. It was an easy install except for the fitment. The rubber ring around the filter is a bit thick. You'll be wresting trying to close the clamp on the filter, but it's doable. Overall, I love new the air filter! Thanks, AM!

        Helpful (3)
      • January 30, 2019

        3 2003 Mach 1 - NickT Installation Time: Less than 1 Hour

        What you expect

        Its not going to be a noticeable gain but id say its worth it cant hurt to have better airflow and better than cold air intake for price because having a larger intake wont help with stock throttle body

        Helpful (2)
      • January 18, 2019

        5 1998 Cobra - RAYMONDALAMO Installation Time: Less than 1 Hour

        1998 Mustang SVT Cobra

        I can definitely tell the breathing is much better - by far!

        Helpful (3)
      • October 16, 2018

        5 2003 Mach 1 - CourtneyH Installation Time: Less than 1 Hour

        K N FTW!!

        KandN always provides quality products. I have had several CAI systems on several F-150's and other cars in the past. Alot of Mach 1 people have stated that the drop in filter is the way to go and if you want to keep the stock Mach look under the hood this is a nice little add on. The butt dyno says that acceleration is a little better and so is the throttle response. I would recommend this product for any Mach 1 owners.

        Helpful (2)
      • June 20, 2018

        5 2003 Mach 1 - JefferyS Installation Time: Less than 1 Hour

        Ready Set Go!

        Helped the Mach to breathe deeper and after 5 re-fuels the mileage has increased 80miles more per tank. Actual power feel, none.

        Helpful (5)
      • April 26, 2018

        5 2000 GT - AlvinP Installation Time: Less than 1 Hour

        K N makes a great filter

        I have KandN filters in 3 of my cars and in my bike. They make a great filter and will pay for itself within 3 filter change. The one issue I had is the seal/base of the filter is a little thick and was tight trying to clamp the filter box back together.

        Helpful (6)
      • January 16, 2018

        5 2002 GT - ManuelG Installation Time: Less than 1 Hour


        My car runs better and faster with this filter. I can really feel the difference from the 1 st moment after I’d changed it. The best under $100 Mod you can do to your Mustang!

        Helpful (6)
      • July 26, 2017

        5 2003 Mach 1 - GasAttack Installation Time: Less than 1 Hour

        Great low cost power adder

        Great low cost power adder and easy to install. you will feel the added power.

        Helpful (6)

      Questions & Answers (3 answers)

      3 Top Rated Questions

      So how exactly is this a drop in filter? Does this fit in your factory ford factory air box or does this attach on its own like a cold air intake..? I'm just curious if it does go in the air box how does it attach and will it stay in place?

      • It does go in the existing air box as a direct replacement for your disposable filters that you origionaly used. It clips in place with the same tension bracket that held the disposable filter in place. This is a good reusable filter if you want to just replace that. I used one in my 2001 GT for almost 5 years, it's a good product that I suggest to any Mustang owner who cherrishes their pony. If you're looking at this as a performance upgrade however, I strongly urge you to invest a little more and get a true cold air intake such as the BBK one ( ) or something comparable. I can feel a definite increase in performance since the change and it was easy to install. You still get the reuable cloth filter, but moving the air intake to your fenderwell makes a noticable diffrence. On top of that, the chrome finish or one of the others with a matt black look awesome under the hood. You can see mine if you look at the customer photos and find the yellow Mustang. I installed it in the parking lot at work on my lunch break! Easy peasy!

      Helpful (1) Show 3 more answers

      Is it possible for one of these to be factored into a Bama tune with one of your tuners you sell? I know the full CAIs can be factored into a tune but did not know if a performance filter with factory intake could as well.

      • This filter would not require a tune when installed.

      Helpful (0)

      Is it washable and reusable?

      • Yes - this filter is washable and reusable. Great upgrade over the disposable filters and provides better airflow for your Mustang.

      Helpful (0) Show 2 more answers
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Air Filter

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 01
      • Cobra - 96, 97, 98, 99, 01, 03, 04
      • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04
      • Mach 1 - 03, 04

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