15%+ more spark than stock. Which are very impressive numbers for coils. Many sellers just sell aftermarket coils making claims that they are better than stock without any real testing, but have never put it on a dyno to see actual differences.
We don't release a product unless it produces better results than a factory OEM coil. With several dyno runs, we have tested many aftermarket brands that produce worse power than OEM GM coils, which in our opinion is unacceptable. This set of 8 coils will fit in place of the stock coils and connect directly to the factory connectors. Once installed, you'll have the power and performance of higher energy ignition. The Increased spark energy and voltage help improve the combustion process of the fuel mixture to create a more efficient burn.
This results is improved throttle response, smooth idle, and quick starts, plus increased high rpm performance! These work fine also for totally factory stock vehicles.
There are many variations of LS coils even within the same make and model year, so please check your vehicle to see if you have the round style. Compare to our pictures or if they are stock c oils they are Stamped. It will not fit vehicles with the square style coil.
The connectors and the way they mount are different so you have to verify they look like the ones pictured. It is not 100% accurate based on having so many LS applications and variations from GM that it is not always accurate. You must open your hood and see what you have! Look for ZZPerformance on all social platforms!Today ZZP is located in Wyoming, MI. Occupying over 30,000 sq ft, we are the World's Largest Supplier of aftermarket performance parts for 3800, Sonic/cruze, Ecotec, and soon to be ATS platforms providing industry leading customer service and support. ZZPerformance provides you with highly specific technical information, not found anywhere else.
All manufacturers names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. The item "8x ZZPerformance LS Round High Voltage Coil Packs GM Gen IV LS2 LS3 LS4 LS7" is in sale since Wednesday, July 3, 2013. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Ignition Systems\Coils, Modules & Pick-Ups".
The seller is "zzperformance_esales" and is located in Grand Rapids, Michigan. This item can be shipped worldwide.