FAST XR Ignition Coil Set for GEN3 4.8/5.3/6.0L LS Truck Engines - Set of 8

This is the FAST XR Series ignition coil set, designed specifically for GEN 3 GM LS truck engines like the 4.8L, 5.3L, and 6.0L found in popular trucks from 1999 to 2007. These coils are built to give your engine a stronger spark, which can make a noticeable difference in how it runs, especially if you've modified your engine or are looking for improved performance.

Inside each coil, you'll find ultra-pure copper alloy windings. This well-built construction allows these coils to handle high-RPM situations, tested up to 8,000 RPM, and support engines making up to 1,500 horsepower. Compared to your factory coils, the FAST XR set can deliver between 15-20% more energy to your spark plugs. This improved energy transfer helps ensure a more complete burn in the combustion chamber, leading to a more responsive engine.

Keep in mind that these coils are not CARB approved and cannot be shipped to California. If you're rebuilding the top end of your LS truck engine or just looking for a solid upgrade to your ignition system, this set of eight coils is a popular choice.