
NGK LTR7IX-11 (6510) 1-step colder Spark Plugs (QTY: 4, 6,or 8) - Pre-gapped to TUNE+ Spec
This listing is for a SET (4)of NGK LTR7IX-11 (6510) Spark plugs for all Ecoboost vehicles. These are pre-gapped and ready to install to our recommended spec for your vehicle based on fuel. We have tested multiple different sets of spark plugs and only offer the plugs that work best for the Ecoboost/Coyote application. Price is for a complete set (4) for your vehicle! Plugs are pre-gapped, do not attempt to change the gap! 13ft/lbs MAX TORQUE only, do not over torque any spark plugs! No Anti-seize or Dielectric Grease When selecting your fuel, the difference will be the gap. If you intend on running 91-92-93-94 AND E85 then you will purchase the 91-92-93-94-E30 Plugs! WE RECOMMEND FOR ALL VEHICLES, INCLUDING STOCK! YOU DO NOT NEED A TUNE TO RUN THESE PLUGS! REPLACE EVERY 12-15,000 MILES FOR BEST PERFORMANCE! Out of the box the NGK 6510 Plugs come gapped at .040-.044". This is too large of a gap for any Ecoboost or Coyote engine and will cause breaking up under full throttle, ro