FAST · New
FAST 97-14 Ford Modular 4V 4.6L/5.4L/5.8L XR Series Ignition Coil - Set of 8
MPN 30391-8 · Store SKU fst30391-8
Supplier stock checked 11/7/2026, 7:24:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
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Product details
Ford 1997-2014 Modular 4V 4.6L/5.4L/5.8L XR Coilsare direct replacements in factory Ford Modular and Coyote engines and fit/connect like OEM coils for an easy install. They are constructed from premium, ultra-pure copper alloy windings, resulting in firing performance approaching 40,000 peak volts. They do not affect emissions and are legal in all 50 states. Ford 1997-2014 Modular 4 4.6L/5.4L/5.8L XR Coils provide 15% more spark energy over OEM coils in any street or racing application where reliable, powerful ignition output is needed. XR Ignition Coil Set for '99-'14 Ford 4.6/5.4/5.8L 4V Modular Engines
Manufacturer fitment & guides
- 1999-2014 Ford 4.6/5.4/5.8L 4V Modular Engines w/ coil-on-plug ignitions. Can be retro-fitted to fit a 1997 and 1998 if a conversion harness is used. 1997-1998 Ford Mustang Cobra and other 4V cars employed a coil pack style ignition coil with one coil pack per bank. Cars that use this ignition coil out of the box are the Mustang Mach 1, '99+ Cobra (97-98 can be retro-fitted) and the Shelby GT500 from 2007 to 2012.
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
