NGK Iridium Spark Plugs for the Ecoboost Mustang - 1 step colder, pre-gapped to Purple Drank Tuning's specifications. These are the NGK LTR7IX-11 (6510).
- Full set of (4) for your Ecoboost Mustang
- Pre-Gapped to PD Tuning's specs for pump gas (must email if only using full E85)
- Do not use an anti-seize or dielectric grease on these upon installation
- Do not overtighten these upon installation - recommended is 10ft/lbs
- Limited quantity in stock at all times
- Recommended replacement every 10k-15k miles (depending on usage & fuel)
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