Spark Plug - Super Racing - 14 mm Thread - 25 mm Reach - Heat Range 15 - Tapered Seat - Resistor - Each

Spark Plug - Super Yttrium Racing - 14 mm Thread - 19 mm Reach - Heat Range 17 - Gasket Seat - Resistor - Each

Spark Plug - Super Yttrium Racing - 14 mm Thread - 18 mm Reach - Heat Range 15 - Gasket Seat - Resistor - Each

Upgrade your racing performance with the Spark Plug Super Racing Yttrium by BRISK RACING SPARK PLUGS. Engineered for ultimate power and efficiency, this plug features a 14 mm thread and tapered seat for superior conductivity. With a heat range of 17,...

Spark Plug - Turbo Racing - 14 mm Thread - 19 mm Reach - Heat Range 8 - Gasket Seat - Resistor - Each

Upgrade your vehicle's performance with the NGK Spark Plug-Stock # 4940. Crafted for racing enthusiasts, this spark plug features a 10 mm thread and 0.749 in reach, ensuring optimal combustion for maximum power output. Designed with a gasket seat for...