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3V Hot Street Coil Packs (05-10 GT)

Market Price $372.00 You Save 10% ($36.65)
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  • Item 65013

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    Features & Details

    • Perfect for Mustangs with Minor Bolt-Ons.
    • More Horsepower and Torque.
    • Increased Fuel Economy.
    • Kit Includes (8) 40k Coil Packs.
    • Designed for 05-10 Three Valve GT Mustangs.
    More Horsepower and Torque. The Hot Street Series 40,000 volt coils provide 20,000 more volts then stock oem factory coils to help produce more power from your modern modular motor and are a perfect match for engines 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 power.

    Application. These Granatelli Motor Sports Three valve Hot Street Coil Packs are designed for use with the 2005-2010 GT Mustangs.

    Fitment: 2005 2006 2007 2008 2009 2010 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

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

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    Questions & Answers (2)

    2 Top Rated Questions

    Putting these coil packs on will they change the plugs? AS the stock plugs have a tendency to break.

    • New plugs are not required when installing the GMS 3V Hot-Street Coil Pack, unless your existing spark plugs are worn out.

    Helpful (0)

    if my car is not Bolt Ons can I install this GMS 3V hot street coil pack in it?

    • The GMS 3V Hot-Street Coil Pack (05-10 GT) will work with any 05-10 GT however they will work perfectly with minor bolt ons.

    Helpful (0)
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    Customer Reviews (22) Write a Review

    Overall Rating 4.1

    out of 5 stars

    Installation Time:Afternoon

    • Performance Gain 3.6 3.6
    • Fit 4.2 4.2

    • 3/5

      Installation Time: Less than 1 Hour

      December 21, 2013

      Problematic; read review

      I bought this set a couple years ago and installed when I had a few exhaust leaks/tuning issues. Well, I just figured out that they were defective from the get-go. Misfires, lagging response at random, and finally two stopped firing altogether to where I could barely get down the road to the parts store for a temporary replacement. I didn't consider they were bad and after multiple spark plug cleanings, a couple sets of o2 sensors fouled out, and diagnosis (this is a DD car, so I am limited on how much down time I can have with my job), I started thinking these things are the primary cause. When they finally dropped out two cylinders while on the way to the parts store, I replaced two with OEM ones and the idle smoothed out a LOT. I could still hear some missing, slight backfiring upon deceleration, and had some hesitation under WOT. Replacement with a new set altogether (Summit Racing had a set other than these with the upright connector jack and they were blue to match my underhood dress-up style) and she purrs like the day I bought the car. I will not recommend these being there was an entire set defective...not just one or two. They cost me a few hundred dollars in other parts being they kept fouling out plugs, o2 sensors, maybe have caused extra soot in my catalytic converters, and the time I have spent cleaning out my engine from the leftover soot. When they WERE firing at highway speed under cruise control, I was getting a couple mpg out of them, but otherwise they were not worth my money/time.


      Year: 2006 Submodel: GT Florida

      Helpful (5)

    • 4/5

      Installation Time: Afternoon

      October 02, 2013

      Very good

      Nice buy for the price! Would recommend it to Stang owners.


      Year: 2006 Submodel: GT Louisiana

      Helpful (5)

    • 1/5

      Installation Time: Less than 1 Hour

      March 18, 2013

      Problem after problem

      I installed these, along with a new set of spark plugs, the night I received them. The first thing I noticed was that the boots are quite a bit shorter than the boots on the OEM coils. No problem, a little dielectric grease told me they seemed to be making a connection to the spark plugs. I was excited to take my pony out for a ride. The only problem, I was misfiring all over the place. I drove around for a while and received the much anticipated CEL so that I could figure out which cylinder was missing. I called AM and they sent out a replacement set. I replaced the cylinder that my CEL told me was bad with one of the new ones and cleared the CEL code. Unfortunately, I was still having random misfiring and the power on the car seemed down. I've decided to take them out and put the OEM coils back on and my car is back to running well. I'd recommend looking at another brand.


      Year: 2008 Submodel: GT Thornton, CO

      Helpful (6)

    • 5/5

      Installation Time: Less than 1 Hour

      March 16, 2013

      All problems listed must be for an older version...

      because all 8 went in fast and didn't have any of the fitment problems suggested here. At least not with this, the second batch. The first set of coils I got from here, one went bad. Also, the fitment on my first set was much more difficult. These slide on perfectly and the feel is great- Everything feels instantly... tighter


      Year: 2006 Submodel: GT Tampa, FL, USA

      Helpful (6)

    • 2/5

      Installation Time: Less than 1 Hour

      October 13, 2012


      I bought these about a year ago - was very happy with the performance bump, and easy install. Two buddies also bought them with me. About six months later, I started getting a check engine light, and sure enough, one of the coils went bad. I took it out, GMS was nice about replacing it. Now, almost six months more, same thing. My two buddies that bought them? One had the same thing as me, one failed in a few months. The other friend has had no problems... For me, I'm just not happy with how fast they're failing, and I'm ripping them out today. If you do your homework, you'll see a lot of people saying the same thing about the GMS coils, they just fail entirely too fast. Beware!


      Year: 2010 Submodel: GT South Carolina, USA

      Helpful (13)

    • 5/5

      Installation Time: Less than 1 Hour

      August 22, 2012

      easy plug and play

      good product, good fit, easy install. used them with some 0 Degree plugs and the engine runs much more efficiently.


      Year: 2007 Submodel: GT Milwaukee, WI

      Helpful (4)

    • 1/5

      Installation Time: Less than 1 Hour

      July 18, 2012

      Easy installation, diappointing results...

      I was debating back and forth on these or the MSD. I decided to save a few bucks and get these. Installation was easier than I thought. You only need once size socket, extension and ratchet. The only one that is difficult to get to is the rear coil on the driver’s side. I have a Whipple SC so the throttle body was in the way; I recommend moving it to save time. I installed the coils and new plugs at the same time. Afterward the car ran bad; it felt like it was missing under throttle. I replaced the plugs back to stock and still had the same problem. Then one-by-one I replaced the coils and found 1-2 where bad. It was disappointing to have a new product that was bad. I understand it happens from time to time but I lost faith in the brand, returned them and upgraded to MSD. I Installed the MSD and had no problems and was happy with the results. It’s up to you if your willing to take the risk or not.


      Year: 2007 Submodel: GT PA

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      February 16, 2012

      Very easy it install

      Car runs smooth, better throttle response and horse power. Installation took me less than an hour with basic hand tools. It looks Awsome when I pop my hood!!!


      Year: 2005 Submodel: GT Dinuba, CA

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      January 21, 2012

      modded mustang gt



      Year: 2006 Submodel: GT new jersey

      Helpful (4)

    • 4/5

      Installation Time: Shop Install

      October 09, 2011

      Good Product - Some fitment issues

      Throttle Response is noticeably better after installing. Shop that did the install for me noted that the angle is different from the OEM coils but that after some finagling with moving a sensor around, they were able to get them put in. Good product for the money but just be mindful of some minimal fitment issues versus stock.


      Year: 2010 Submodel: GT Huntersville, NC

      Helpful (6)

    • 4/5

      June 05, 2011


      Good product. Helps improve firing-much smoother now. Installation is easy but the red stickers, since they're on the same sides, don't look uniform when installed.


      Year: 2005 Submodel: GT

      Helpful (6)

    • 5/5

      November 24, 2010


      Just popped these bad boys in. I did my research and even went so far as to read the responses that JR himself put up on a few sites. I decided that these GMS coil packs were going to be the best bang for my buck. Coupled with my new Bama tune (free tunes for life!) I am very pleased. I will be keeping my eye on the MPGs though. They might go either way. I can feel the punchier acceleration and slightly quicker tach. Very easy to install. It took me longer to load the tune than to swap the COPs out with two guys.


      Helpful (9)

    • 5/5

      November 09, 2010

      put a little spark in youre gallop

      this was a great product easy to install and can feel the power pick up

      bill parsons

      Helpful (4)

    • 3/5

      August 22, 2010

      coil packs

      from the pic it looks like they are total red,, its only a sticker on them, a little disappointing,,,, and they dont fit like stock ones did design is a little different,, they run good

      robert seidel

      Helpful (10)

    • 5/5

      August 08, 2010

      its great

      very easy to install and made great improvments in peformance . product and service was and is great

      bill brian parsons

      Helpful (5)

    • 5/5

      July 30, 2010

      coil park

      horse power is great


      Helpful (5)

    • 5/5

      June 25, 2010

      gms 3v coil pack

      coils look and perform great with my set up... I have a vortec v2 10psi shortys meth injection gt500 pump 39lbs injectors...never had a problem check it out on youtube(wagara2004)


      Helpful (7)

    • 5/5

      June 01, 2010

      GMS 3V Hot Coils

      Great product. Real seat-of-the-pants difference for not alot of money.

      Eric Martin

      Helpful (10)

    • 5/5

      April 29, 2010

      GMS Coils

      Car runs smoother and picked up 1 mpg on the highway

      L. Adams

      Helpful (6)

    • 5/5

      April 05, 2010




      Helpful (6)

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