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 or full E85 (select at checkout)
- 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, orders ship as fast as possible!
- Recommended replacement every 10k-15k miles (depending on usage & fuel)
- Suggested inspection at every oil change interval