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XR Ignition Coil Set for 2008-2016 Ford 4.6/5.4 3V Modular and 6.8L V10; Ford 2008-2016 Modular 3V 4.6L/5.4L/6.8L XR Coils provide 15% more spark energy over OEM coils in street and racing applications.

XR Ignition Coil for '11-'15 Ford 5.0 Coyote Engines; Ford 2011-2015 Coyote 5.0L XR Coils provide 15% more spark energy over OEM coils in both street and racing applications.

XR Ignition Coil Set for '11-'15 Ford 5.0 Coyote Engines; Ford 2011-2015 Coyote 5.0L XR Coils provide 15% more spark energy over OEM coils in both street and racing applications.

XR Ignition Coil for '11-'18 Ford 3.5L EcoBoost; XR Series Coilsprovide 15% more spark energy over OEM coils, resulting in increased performance and powerforFord 3.5L EcoBoost street or racing engines wherereliable, powerful ignition output is needed.

XR Ignition Coil Set for '11-'18 Ford 3.5L EcoBoost; XR Series Coilsprovide 15% more spark energy over OEM coils, resulting in increased performance and powerforFord 3.5L EcoBoost street or racing engines wherereliable, powerful ignition output is needed.

XR Coil Set for 4.8, 5.3, 6.0, 6.2, 7.0 GEN IV LS Truck Engines; 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.

XR Coil for LS1, LS6 and 7.4/8.1 ('98-'01); XR Series ignition coil for '97-'05 GM LS1/LS6 and Medium Duty 7.4/8.1 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.

XR Coil Set for LS1, LS6 and 7.4/8.1 ('98-'01); XR Series ignition coil set for '97-'05 GM LS1/LS6 and Medium Duty 7.4/8.1 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.

XR Coil for 4.8, 5.3, 6.0 GEN III LS Truck Engines; XR Series ignition coil for '99-'07 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.

XR Coil Set for 4.8, 5.3, 6.0 GEN III LS Truck Engines; XR Series ignition coil set for '99-'07 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.

XR-1A High-Output Coil With Connector; ideal for high-compression N/A, boosted & nitrous-equipped engines. Provides spark energy comparable to CDI systems without a CD ignition