NGK Racing R7448A-9 Spark Plug Set

This NGK Racing R7448A-9 spark plug set is designed for 4-cylinder EcoBoost engines suitable for stage 2 and above cars. It features a 2.5mm center electrode and enhanced ignition ability.

• The description claims the spark plugs can handle harsh engine conditions.
• The description claims special insulator nose configurations improve throttle response.
• The description claims corrugated ribs prevent flashover.
• The description claims a pure alumina silicate ceramic insulator provides superior strength and better heat transfer.
• The description claims a copper core aids in heat removal.
• The description claims triple seals prevent leakage.