When adding aftermarket upgrades to your Ecoboost 3.5L F-150/Raptor truck a set of colder spark plugs is recommended to help improve performance and limit the chance of spark blow out. These NGK spark plugs are 1 heat range cooler than stock and are recommended to have the gap set at .028" in most applications. These spark plugs should be replaced every 20-30K miles intervals or sooner. These NGK-6510 LTR7IX-11 for the Ford Raptor's 3.5L Ecoboost ensures high durability with the fine Iridium tips. The Iridium alloy has extremely high melting point which is perfect for the high-tech performance Ford Raptors.
COMES IN SET OF 6 PLUGS