Ignition Coil and Iridium Spark Plugs for Ford Mustang (2015-2020) 5.2L

High-Output Ignition Coil and Iridium Spark Plug Kit for 2015-2020 Ford Mustang

What it Does: The direct-replacement ignition coil and iridium spark plug kit replaces aged factory ignition components on the 2015-2020 Ford Mustang 5.2L to eliminate high-RPM spark blowout, stabilize idle, and restore crisp throttle response.

The Stock Ford Mustang High-RPM Ignition Breakdown

The high-revving 8,250 RPM flat-plane crank Voodoo V8 in the S550 Mustang generates intense secondary engine harmonics and extreme cylinder head thermal stress. Over repeated heat cycles, the factory pencil coil epoxy insulation degrades, creating internal dielectric breakdown, micro-arcing, and secondary winding resistance drift. Combined with premature spark plug electrode erosion from high cylinder pressures, the stock ignition system suffers from severe high-RPM spark quench, erratic combustion cycles, and notorious misfire codes (P0300-P0308) under wide-open throttle.

The Engineering Solution

This comprehensive ignition service kit resolves thermal and vibrational failure modes. Each coil-on-plug pencil coil features high-grade copper primary and secondary windings potted in impact-resistant dielectric resin, maintaining coil saturation times and peak voltage output across the entire tachometer sweep. Paired with fine-wire iridium center electrode spark plugs, the package reduces required firing voltage, accelerates flame-front propagation, and resists carbon fouling. Direct interchange with OEM part numbers UF780, C876, 49184, and GN10726 ensures an exact plug-and-play mechanical and electrical fitment without harness modifications.

Technical Specifications

Compatibility

• 2015-2020 Ford Mustang Shelby GT350 5.2L V8
• 2015-2020 Ford Mustang Shelby GT350R 5.2L V8

Frequently Asked Questions

Does this fit the S550 Mustang?
Yes, this is a direct fit for the 2015-2020 Ford Mustang equipped with the 5.2L Voodoo engine.

Are the iridium spark plugs pre-gapped for the 5.2L engine?
Yes, the spark plugs come pre-gapped to factory specifications, though verifying clearance before installation is always recommended.

The Ford Performance Caliber

Engineered to handle sustained track abuse and the brutal harmonics of the 5.2L platform, this ignition pack delivers instantaneous throttle snap and clean power delivery right to the redline.