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Plug-in MIL Eliminators (96-04 All)

Market Price $54.99 You Save 13% ($7.00)


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  • Item 56045
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Features, Video & Details

  • Eliminates Check Engine Light
  • Exceptional Electronics
  • Easy Plug-In Design
  • Sold as a Set of Two
  • Designed for 1996-2004 Mustangs

Review & Installation Video

Review & Install Video

Eliminates Check Engine Light. If you're running an off-road H-Pipe or X-Pipe, Plug-in MIL eliminators will shut off the annoying Check Engine Light (CEL). MIL which is short for Malfunction Indicator Light Eliminator shuts off CELs by blocking the codes generated by the rear O2 sensors when running an off road Mid Pipe or some Mid Pipes with ultra high-flow cats.

Exceptional Build. These MIL eliminators are assembled from state of the art electronic components and include rugged plastic plug-in connectors that easily insert into the stock wiring harness.

Easy Installation. Installation is straight forward and simple. Plug the MIL eliminator to the corresponding connectors. One end will plug into the oxygen sensor and the other end will plug into the vehicles wire loom.

Application. This pair of Plug-in MIL Eliminators are designed to be used on all 1996-2004 Mustangs, including on V6, GT, Bullitt, Mach 1, and SVT Cobra models.

Technical Note. Minor modifications to the "clip" may be needed for installation on some GT, Mach 1, and Cobra Mustangs.

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

What's in the Box
  • (2) Mil Harnesses
Installation Info
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • V6 - 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra - 96, 97, 98, 99, 01, 03, 04
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

Most Helpful Reviews

MIL Eliminators

I purchased these to go along with the install of a MAC Pro-Chamber on my 96 GT. I have nothing but good things to say about them. They work exactly as they should, and simply plugged into place. I have ...

Read More
Helpful (1)

MIL ELiminators

Just got an x-pipe and needed these to get the check engine light to come off. They worked great and were delivered to me fast. American Muscle always gets the orders in right away and gets me an e-mail ...

Read More
Helpful (1)

Overall Rating 4.6 out of 5 stars
Read All 100+ Reviews

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17 Questions / 7 Answers

Ask a Question

dos this plug-in could fit a 2005 mustang gt?


  • This plug may not fit your 2005, it might look the same but the plugins may be different.


    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

the plug in eliminators seems to be very popular out there will I need them if I decide to buy the bama x4 tuner? Will the tuner clear the trouble shoot code because it does ask what mods you have done to your car? I also have a 2001 mustang bullitt will I absolutely (need) the o2 extensions too?


  • I have these because I don't have cats nor a tuner so this what I use for the time being. If you are going to purchase a tuner you can inquire on what parameters can be eliminated such as EGR, Cat monitors, EVAP and more. I do recommend that you stay inside your state emission guidelines. In my state the emission OBD-II requirement are for 2001 and newer but not all states are the same so check your local guide on emission requirements. I have a 97 and everything works because I hate check engine lights. AM will require the information of your car and mods you have and get you where you need t be, Now you have a better idea of what is involved and cost you nothing to speak to anyone at AM...


    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

will this fit my 2009 gt? If it doesn't fit what would work with it?


  • These are specific to the 96-04 Mustangs. I am sure they are not designed for your year.


    Good Answer (1) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Are these MIL Eliminators capable of allowing a car to pass a SMOG test when bank 1 and 2 lean codes are present but recently cleared? Hopefully that last part makes sense.


  • The Plug-in MIL Eliminators will keep your check engine light off for your two rear O2 sensors. But, whether your car passes your local inspection or SMOG test depends on the laws and regulations in your area.


    Good Answer (0) (0)

Question Resolved

Once I install these, do I need to drive the car a while or should they immediately reset the P0430, P0420 codes?


  • The computer in your Mustang runs a self-diagnostic periodically and should reset itself, but if by chance it does not you can use a code reader to remove the codes manually or disconnect the negative terminal of the battery for 15 minutes and it will clear the computer.


    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

I have an O/R H pipe and I'm getting P0430. Will these clear the engine light for that code or is it only for P0420?


  • The Plug-in MIL Eliminators should eliminate that check engine light and code. That code is for you O2 sensor reading too much air coming through the exhaust, which is understandable when upgrading to an O/R H pipe.


    Good Answer (0) (0)

Question Resolved

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Customer Reviews (100+) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Less than 1 Hour

Installation Cost:$100-$250

  • Performance Gain 3.719101 3.7
  • Fit 4.212435 4.2

  • 5/5

    August 21, 2008

    MIL Eliminators

    I purchased these to go along with the install of a MAC Pro-Chamber on my 96 GT. I have nothing but good things to say about them. They work exactly as they should, and simply plugged into place. I have had no problems with a check engine light since installing.

    Pete Sullivan

    Year: 1996 Submodel: GT

    Helpful (1) (0)

  • 5/5

    August 21, 2008

    MIL ELiminators

    Just got an x-pipe and needed these to get the check engine light to come off. They worked great and were delivered to me fast. American Muscle always gets the orders in right away and gets me an e-mail super quick! I go here for everything for my Stang!

    Chris Wahl

    Helpful (1) (0)

  • 5/5

    May 05, 2010

    Quick and Easy

    These MIL Eliminators arrived quickly and well packaged. They clipped right inline with the o2 sensors and immediatly shut off that annoying check engine light. Thanks American Muscle! Now how about some discount coupons :)

    John V.

    Helpful (56) (10)

  • 5/5

    February 13, 2010

    Plug and Go

    AM is the Best to start out with! I had Codes p0420/p0430 coming up (Catalyst System Efficiency below Limit).After plugging in MILs, I had code p0136 (O2 Sensor circuit fault). I called AM said it maybe be a bad MIL. They got me new ones right away. Next day no codes and passed emissions.


    Helpful (34) (6)

  • 5/5

    April 14, 2010

    Awesome, works great!

    They are a quality product and connected to my set-up with ease, a lot better then the set of MILs I previously had that got damaged. What makes these better is they are flexible and can conform to however you need to secure them to the underside of the car. Great product and if you are looking for them, don't buy them used.. get them here and you won't be disappointing. If your check engine light is on when you install these, disconnect the battery which will reset the code.


    Helpful (13) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    October 14, 2011

    Worked great on a Contour

    We have a 1997 Contour with a V6 engine, and were getting a "check engine" light while running very clean. In fact, the light was the only reason we were failing a California smog check. Since the registration had to be renewed a month before we would have access to any significant amount of money for catalytic converters and such, this was a problem. Enter the MIL eliminator. My husband probably spent longer getting under the car and then back out than he did on the actual install, which was very much plug-and-play. The parts fit into the car perfectly and installation was so easy I probably could have done it (and I'm very much not a car-repair girl). Once the test cycle completed with no "check engine" light, we passed smog check and renewed registration with no further hiccups. We do plan to finish repairs, but managed to buy ourselves time to come up with the money, since the tailpipe emissions were drastically below limits.


    Year: 1997 Submodel: Other Sacramento, CA

    Helpful (2) (1)

  • 5/5

    March 02, 2010


    Works great, exactly as expected. If you have an off-road x-pipe these are a must. You dont want to ride around with the check engine light on, if something else were to start going wrong you would never know it till it was to late.

    Shane Hale

    Helpful (18) (4)

  • 5/5

    July 20, 2010

    Performance Headers

    Had persistent P0420 and P0430 codes due to upgraded exhaust (full length headers, high flow cats and Flowmaster catback exhaust). Added these into the O2 sensor line for rear sensors and problem went away. Passed TN emissions with no issues.

    2004 Mustang GT

    Year: 2004 Submodel: GT

    Helpful (10) (3)

  • 5/5

    January 03, 2011

    Great Product, Super Easy

    I needed these for my 2005 Mustang GT after installing the Pypes O/R X Pipe...I couldnt find any MILs for an 05 GT... Gave these a shot and they worked Perfectly... Code went away and has not come back on since... Great Product!!!

    Paul McGowan

    Helpful (5) (0)

  • 2/5

    Installation Time: Less than 1 Hour

    June 23, 2012

    MIL Eliminator challenges

    Used the MIL Eliminators after the install of my JBA catless H-pipe. The connectors went together fine. My engine light came on after driving several hours wth a 'Stuck Lean' code the driver's side rear sensor. This was a sensor with a MIL Eliminator installed. I cleared the code and drove several more hours and the code returned. I notified AM and was immediately sent two replacements. I am very impressed with AM's customer service! I installed a new MIL Eliminator and received another 'Stuck Lean' code. I replaced with the second MIL Eliminator AM sent as a replacement and this appeared to work. At this point I went with an SCT tuner and look for the O2 sensor errors to be gone. I read on various message boards there are occasional issues with faulty MIL Eliminators but was surprised to have two not do the job. For that reason I can not recommend the MIL Eliminators but can easily recommend AM due to their efforts to correct the situation.


    Year: 2004 Submodel: GT

    Helpful (6) (1)

    • Response from AmericanMuscle

      This is something we very rarely hear about and I'm very sorry you received 2 plugs that didn't work. I'm glad the replacement set at least gave you a completed set that worked. Had it not for some reason, we'd have shipped you another with no problem. Your decision to go the tuner route in the end will not prove to be a disappointing choice! You will get the best performance from your mid-pipe as well as any other mods you decide to make in the future! Enjoy it!

      Lisa , Customer Care

  • 5/5

    Installation Time: Less than 1 Hour

    November 05, 2011

    Easy plug-in solution to your check engine light!

    If you are installing or already have an off-road (no catalytic converters) mid pipe installed on your car, then this is the best way to remove that annoying check engine light. Installation couldn't be easier. Just plug in and you're done! Comes in a pack of two and is a male/female inline kit. A must have for any car without catalytic converters!


    Year: 2004 Submodel: GT Mobile, Alabama

    Helpful (6) (1)

  • 5/5

    November 16, 2010

    MIL Eliminators

    This product worked amazing. I installed an off road h pipe on my 2001 v6 and after 3 weeks I have absolutely no problems. Great product!


    Year: 2001 Submodel: V6

    Helpful (7) (2)

  • 4/5

    Installation Time: Less than 1 Hour

    March 09, 2012

    not to bad

    the only problem i had yet it was not a big deal was the two alignment tabs on the side of the connectors they would not plug in. just take a pair of snips and cut them off and they fit fine. if your MIL does not go off unplug your negative battery cable or take a scan tool and clear your codes that should keep it off if your codes are due to your catalytic converters.


    Year: 2000 Submodel: GT north carolina

    Helpful (3) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    October 24, 2011


    I ordered this item to go along with my Pypes O/R X pipe. Very easy install, clips right in. Fit was ok, but I had to use zip ties to hold them up from hanging below the body line. After install I still had the check engine light illuminate at times even after resetting. Over all good product, could have been other issue.


    Year: 2012 Submodel: GT Lovington NM USA

    Helpful (3) (0)

  • 5/5

    May 24, 2011

    MIL eliminators

    I bought these for my 2006 GT and they work great. I had the MIL light come on once but I cleared it and no issues. They work great even on the years they aren't meant for. The install took maybe 5 minutes. Just plug in and that's it.


    Year: 2006 Submodel: GT

    Helpful (2) (1)

  • 5/5

    April 19, 2010

    Works great on my 4.6L Cougar!

    Purchased these eliminators for my '96 Mercury Cougar XR7 with the 4.6L V8. The cats are good but my sensors were sending inefficiency codes and tripping the check engine light, which was preventing me from renewing my plates (Illinois and their dumb emissions laws) Ordered these eliminators, installed them, and I'm good to go! Plugs were a perfect match. Highly recommended!


    Year: 1996

    Helpful (5) (4)

  • 5/5

    July 16, 2011

    works as described

    this product works as described,shut off that annoying check engine light..2 of my cats went out & i didnt have the money to replace them yet so i bought & installed & it shut it off..installation was very easy took about 10 mins..only problem i had was disconnecting my 02 sensors cause they were covered in greese so it was slippery..but when they are just plug those in and ur done..thanks AM..great service...1998 mustang v6 3.8

    Darnell Thomas

    Year: 1998 Submodel: V6

    Helpful (1) (1)

  • 5/5

    April 05, 2011

    Mil eliminators

    Easy install, slight mod to the clips sounds good right? Well 12 miles after I installed them my mil light was back on. Did not work. Not a good experience for a first time buyer from the site.


    Year: 2003 Submodel: Mach 1

    Helpful (0) (1)

  • 5/5

    March 19, 2011

    MIL Elimanators

    Parts worked well. Alignment tabs had to be removed. Overall I'm very satisfied with service from A.M.

    Wesley Currin

    Year: 2000 Submodel: GT

    Helpful (0) (1)

  • 1/5

    Installation Time: Less than 1 Hour

    July 12, 2012

    Not worth the time or money

    I installed a off road x pipe and bought the mils to get rid of the check engine light but it did not work. The light keeps coming on. American muscle sent me another set of mils and still no luck the light keeps coming back on. I will probably buy a tuner to try and pass emissions now.


    Year: 2000 Submodel: GT

    Helpful (0) (2)

    • Response from AmericanMuscle

      If neither set of MILs worked, it may actually be a bad oxygen sensor rather than a bad eliminator. I'd recommend swapping the O2 sensors out to see if that corrects your problem!

      Lisa , Customer Care

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