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Granatelli Motor Sports 4V Street Fighter Coil Packs (99-04 Cobra, Mach 1; 07-12 GT500)

Item 65018
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Ship to: Ashburn - 20149
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      Product Information

      Features, Description, Reviews, Specs & Installation


      • Perfect Upgrade for 4-Valve 4.6L and 5.4L Modular V8's
      • More Horsepower and Torque
      • Increased Fuel Economy
      • Kit Includes (8) 24k Coil Packs
      • Fits 1999-2004 SVT Cobra, Mach 1 and 2007-2010 Shelby GT500


      More Horsepower and Torque. The Street Fighter Series 24,000 volt coils provide 4,000 more volts then stock OEM factory coils to help produce more power from your modern modular motor and are a perfect replacement upgrade for stock engines or mustangs with minor performance upgrades.

      Better Fuel Economy. A hotter spark burns fuel more completely releasing all it's energy translating into better fuel economy and more power.

      Complete Kit. This complete kit includes all hardware necessary for installation including the 8 coil packs and connector cables.

      These Granatelli Motor Sports 4-valve Street Fighter Coil Packs are designed for use with the 1999-2004 SVT Cobra, 2003-2004 Mach 1 and 2007-2010 Shelby GT500 Mustangs.

      Fitment: 1999 2001 2003 2004 2007 2008 2009 2010 Details

      MPN# 21-4001-SF

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (10)

      Write a Review

      Ratings Summary

      4.4 out of 5 overall rating from 10 customers

      Installation Time: Less than 1 Hour

      • July 26, 2018

        2 2003 Cobra - lm Installation Time: Less than 1 Hour

        short lived

        Used for a little over 2 years and roughly 7-10k miles until i started having horrible misfires and breaking up really bad under wot, went back to the oem 15year old coils and my car drives fine again. I was hoping they would've lasted a little longer than they did.

        Helpful (5)
      • April 27, 2018

        4 2001 Cobra - Fox Installation Time: Afternoon

        Coil Pack

        Install these coil packs on my 2001 Cobra, and I notice a a positive power gain over original manufacture equipment. I would recommend this product.

        Helpful (6)
      • March 24, 2018

        5 2008 GT500 - JudgeVelocity Installation Time: Afternoon

        Easy fit, no issues as of yet (7 Months)

        Quick and simple assembly, adds a few KV to the Factory output for a sure-fire spark- great for wider gapped Plugs. All in all, great bang for the Buck!

        Helpful (6)
      • January 25, 2018

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



        Helpful (7)
      • March 08, 2017

        5 1996 Cobra - GreatOne Installation Time: Afternoon

        Coil pack

        Easy install and the car runs smoother and better throttle response.

        Helpful (7)
      • May 27, 2014

        5 2008 GT500 - Johnsonsgt500 Installation Time: Less than 1 Hour

        GTMS coil packs for GT500

        Excellent fit and craftsmanship is great. Idle quality seems alot better and throttle response is good. My 08 GT500 is modded so alittle more spark is welcome with the 80lbs. injectors to help burn the fuel.Mustangs are for driving not parked!!! Check your grill emblem of that horse running.!!!!

        Helpful (8)
      • April 22, 2014

        4 2007 GT500 - Stilleto Installation Time: Less than 1 Hour

        Does what it's Suppose To

        The performance gain is pretty negligible for these. Coil packs aren't meant to provide any performance gain like cams or new heads, but they do fit well and were super easy to install. The engine runs a little smoother since I've added these. I did also change the spark plugs at the same time so that "smoothness" could be attributed to that as well.

        Helpful (8)
      • December 27, 2012

        5 1999 Cobra - FastBlack99Cobra Installation Time: Less than 1 Hour

        Great Coil for the Price!

        I got these coils mainly to fix a hesitation problem I had with my 99 Cobra at part throttle. With all the 4.6 mustangs I've had, this usually is a sign of a coil that's starting to go bad. These coils fixed the problem as soon as they were installed. I could also feel a difference in the engine. It was smoother and all around better running. I even picked up a little gas mileage. Not the most pricey set of coils on here, but these are just as good in my opinion.

        Helpful (6)
      • December 11, 2012

        5 2004 Cobra - Philstang Installation Time: Less than 1 Hour

        Good deal

        Great tune up item when replacing plugs. Car idles smoother and at lower rpm. Acceleration was restored and I am happy with the price and performance.

        Helpful (8)
      • September 12, 2012

        4 2003 Mach 1 - OWmach1 Installation Time: Less than 1 Hour

        GMS 4v street fighter coil pack

        Worth the price. Replaced my original coil packs with these and some ngk spark can feel the engine is running a lot smoother and I no longer have a misfire during idle.

        Helpful (10)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (8) Coil Packs

      Tech Specs

      Will It Fit My Mustang

      • Cobra - 99, 01, 03, 04
      • GT500 - 07, 08, 09, 10
      • Mach 1 - 03, 04

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