FAST GM LS 4.8L/5.3L/6.0L/6.2L/7.0L Gen V XR Series Ignition Coil - Set of 8

XR Series ignition coil set for '05-'15 GM 4.8, 5.3 and 6.0 trucks provides up to 15-20% more energy over stock ignition coils.Built from ultra-pure copper alloy windings, our coils have been tested to 8,000+ RPM and 1,500 HP.