HKS 50003-MR40XLB Spark Plug Super Fire Racing for TOYOTA GR Supra / BMW Engine B58 / B48 / B38

Description

• This spark plug is the M12 and Bi-HEX14 shape that is compatible with the GR Supra and BMW B series engine (B58, B48 and B38) vehicles.
• We are offering NGK heat range 8 equivalent spark plug, which is ideal for replacing genuine products, and NGK 9 equivalent spark plug, which provide a higher grade of peace of mind with tuned car.
• Durability is ensured by alloying the central electrode with ruthenium.
• The center electrode diameter set at 0.6mm reduces the required voltage and improves ignition performance.
• Ground electrode with platinum alloy tip improves durability and ignitability. Shortened ground electrode length contributes to electrode strength and durability.
• The ground electrode contains a copper core to suppress temperature rise of the electrode and improve durability.