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Accel Super Coil Packs - Yellow (99-04 GT)

Market Price $227.99 You Save 17% ($38.04)
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  • Item 37222
  • MPN# 140032-8

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    Features, Video & Details

    • 10-15% More Energy Than OEM Coils
    • More Horsepower
    • Direct Bolt-On
    • Kit Includes (8) Coil Packs
    • Designed for 1999-2004 SOHC Two Valve GT's

    Review & Installation Video

    Review & Install Video

    Hey everyone Justin here with AmericanMuscle.com, and I’m checking out Accel’s super coil on plug kit for all 99-04 Mustang GTs. Accel has been in the performance ignition game for well over 40 years, and continues to produce parts that aim to squeeze every ounce of horse power out of your car, whether it’s a weekend cruiser or an all out drag strip monster. These Accel coils give your modular motor a spark that is 10-15% stronger than your OEM coils by using a specialized magnetic steel core, optimized winding, resistance and turn ratio, this basically equates to a hotter, stronger spark, which gives you more horsepower and better fuel economy. This is extremely important to those of you looking to get the most out of your motor, but may be dealing with old faulty OEM coils, possibly resulting in a misfire. Alright I know what you’re thinking, get to the good stuff already, gotcha. Ultimately we want to see what kind of improvement these coils will make on our GT, but before we do that let’s get a baseline number down and see what we’re working with. So our baseline run on our 2000 GT gave us 221 horsepower and 261 ft/lbs of torque. Now let’s get those stock coils out of there and install our Accel units. Install is very simple and should take you about 30 minutes using standard hand tools, I will advise you to disconnect your battery first and then go ahead and remove your intake tube, that way you can access everything a whole lot easier. You will need to grab a 7mm socket, and remove each one of your coils individually replacing them with the Accel units. So now we have everything installed here back at the shop we’re going to run the car once again on the dyno and see the improvements this kit made on our GT. So with our Accel coils installed we put down a total of 220 horsepower and 267 ft/lbs of torque, now while we didn’t see any peak horsepower gains from the coils, we did manage to pick up 7 horsepower and 11 ft/lbs of torque throughout the curve. Let’s face it, getting old stinks, especially when it comes to critical components pertaining to your ride, your factory coils are a great example. As they age they have a tendency to fail, resulting in loss of power, worse fuel economy, and ultimately a poor running vehicle. This kit from Accel is a great way to make your modular motor feel young again for a fraction of the price of new OEM coils.

    More Horsepower. The Accel Super Coil On Plug Kit makes more power then the wimpy stock OEM factory coils to help produce more horsepower from your modern SOHC modular motor and are a perfect match for stock engines and engines with minor performance upgrades. Curve gains of 7 HP and 11 TQ has been seen on a Stock Mustang with a 93 Octane Tune.

    Superior Design. Accel coils feature an advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to delivery 10-15% more energy than the stock OEM coils. More energy equals a hotter spark that burns fuel more completely releasing all it's potential energy translating into better fuel economy and more power that you can feel.

    Application. These Accel two valve Super Coil On Plugs are designed as a direct performance replacement for the 1999 to 2004 SOHC GT Mustangs.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (8) Coil Packs
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (12)

    5 Top Rated Questions

    What spark plugs are needed with super coils When buying super coil-on-plug kits, is a stock or stock replacement spark plug OK? Or do you need a special plug because of the higher voltage?

    • I put in factory motorcraft spark plugs when I put the coils in and it's been about 5 months car still runs strong as when I first put'm in. Hope this helps.

    Helpful (6) Show 3 more answers

    do I need to order wires with this item?

    • 99-04 dont have plug wires you just have plugs and coil packs

    Helpful (5) Show 3 more answers

    Alternator upgrade needed? is it a "wise" choice, or a "must have" choice to upgrade alternator also? I do know i got a bad coil and need new ones, but if i get them and later on upgrade alt. will the new coils put more strain on stock alt?

    • I'm not sure about a "wise" choice, but we kept the stock alternator, drove 1600 miles through the mountains and had no issues at all (not "must have").

    Helpful (1) Show 1 more answer

    My factory coil pack is going out and I was wondering if I can buy these to replace the factory one or do I need to buy something or upgrade anything else to make these work?

    • These will not require any other modifications for these to replaceyour stock coil packs. 

    Helpful (0)

    How much voltage are these coils from the stock ones?

    • These coils have a max voltage of 26,000 while the stock would be around 20,000 V.

    Helpful (0)
    Post Your Question
    7 More Questions
    Hello. Are these smog legal? 1 answer
    Hi I replaced my spark plugs at 96k on my 2001 gt my car now has 97k should i replace the coil plugs? I don't think my factory ones are bad but if I can get better performance I would do it 1 answer
    Will these coils work on a 04 150 with a 4.6 engine are they the same engine thanks wanted to put them in my truck also have them in my mustang and love the performance 1 answer
    Is there a warranty on this product 1 answer
    Will these work on a '98 4.6L? Searched for something similar but nothing really came up 1 answer
    Are coils good for supercharged mustangs 1 answer
    My Mustang has a rough idle and likes to stall out when I'm in neutral. Will these help it stay running? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Less than 1 Hour

    Installation Cost:0-$100

    • Performance Gain 4.319445 4.3
    • Fit 4.882759 4.9



    • 5/5

      Installation Time: Less than 1 Hour

      September 23, 2018

      Plugs

      Good plugs easy to use, easy to install, good product, didn't take me very long

      NoahE

      Year: 2003 Submodel: GT

      Helpful (0)

    • 1/5

      Installation Time: Less than 1 Hour

      August 22, 2018

      They don’t last, and only a 90 day warranty

      This brand only warranties their product for 90 days!!! I have had mine for a year and 8 months and one is already shot. My car is missing and barely running due to them. Can’t get a replacement and they don’t sell single replacements either...

      Mdetore09

      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 08, 2018

      Great and Cheap!

      If I went oem I would've paid over $500 for all 8. So this is the best way to go for sure. I felt the power difference tooo :)

      JeremiahR

      Year: 2001 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      July 25, 2018

      Awesome

      Great and easy install felt a small difference on performance but needed coils and you can’t beat the price because the stock ones a 80 dollars a piece

      CodyK

      Year: 2003 Submodel: GT

      Helpful (2)

    • 5/5

      July 21, 2018

      Accel Super Coil Packs

      Great product , easy installation. A good afternoon project with great results. I could tell the difference between the Accels and stock coils as soon as I started it.

      richard63

      Year: 2001 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      July 13, 2018

      So far so good!

      Got these when I replaced my plugs and intake manifold, had a coolant leak by that stupid heater core return line that soaked a few plugs in coolant causing a missfire when accelerating on a cold engine that went away when it warmed up and this fixed the missfire when it's cold! Can't tell a difference besides that they work.

      wireproof

      Year: 2004 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      July 03, 2018

      Installation of accel super coils.

      Installation was under an hour and the benefits were great! Idle was far superior and all around performance was greatly improved! Highly recommend!

      LennyB

      Year: 2001 Submodel: Bullitt

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      June 18, 2018

      No more misfire

      Fixed my misfire for good. Car runs smooth, and less boggy. Must have.

      JG

      Year: 2001 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 17, 2018

      They work great.

      My old factory coils gave up and needed a new set. Got these accel and they work great. The acceleration response is quicker and they just look good under the hood.

      Chido1

      Year: 2003 Submodel: GT

      Helpful (2)

    • 4/5

      June 15, 2018

      Helped Alot.

      They did help make my GT run alot smoother but its still not baby smooth. possibly because of other issues. im taking it to a mechanic. I already changed spark plugs and coils. Cleaned EGR. And throttle body.

      DanielM

      Year: 2004 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 06, 2018

      Great product Price !!!

      Easy to install, solved my misfiring issue and looks geat.

      BobB

      Year: 1999 Submodel: GT

      Helpful (3)

    • 5/5

      May 21, 2018

      Accel Super Coil On Plug Kit

      Easy to install and they work great along with the new plugs

      JardoO

      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      May 13, 2018

      Grey Ghost

      Product is fantastic. Cars has a little more power... radiator fits screw broke in the passenger side might have to by another radiator .. That will be almost $500. that I spent doing the job myself. As a mustang owner this sucks. However their products are great

      Richard

      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 13, 2018

      Accel cool on plug

      Cleared up my miss fire right away after installation plus they look good also.

      Grumpy

      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 11, 2018

      O ya

      Very easy to install nice upgred for them worn out coils has a noticeable difference

      JosephF

      Year: 2000 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 01, 2018

      Smooth idle

      Idle was rough thought I'd give the super coils a try and wow what a difference they make. Id let smoothed out and throttle response is better. Wasn't looking for hp gains just smoother idle so not sure if there was hp gains but definitely a quality replacement for OEM coils.

      RandyM

      Year: 2004 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 21, 2018

      Good value

      Having put them on my 2003 4.6L, I have noticed a smoother idle and more torque, especially in 5th gear on the highway. Installation was pretty easy, and the shipment arrived very quickly. Very satisfied so far.

      MattJ

      Year: 2003 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Less than 1 Hour

      April 17, 2018

      Accell Super Coil on Plug Kit

      It was easy to install and I noticed immediate improvement, Granted the old coils were on their way out, but I am a fan either way. I would buy them again or suggest them to a friend. You could easily install new coils in less than an hour if everything goes well for you. Make sure you do not over tighten the bolt! The inserts in the plastic intake manifold for the 4.6 PI engine that the bolt screws into can be broken loose if you significantly over tighten.

      JohnS

      Year: 1999 Submodel: GT

      Helpful (3)

    • 3/5

      Installation Time: Less than 1 Hour

      April 12, 2018

      Worked, nothing special

      Could probably go with a cheaper set but these work out fine as a stock replacement in a standard bolt on 2000 gt.

      Robjob12

      Year: 2000 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      March 25, 2018

      Fixed cylinder 3 misfire

      I bought these because at 133k miles my OE coils started malfunctioning. The coils were a perfect fit and excellent quality

      KoreyW

      Year: 2002 Submodel: GT

      Helpful (3)

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