NGK 93560 SILKGR9A7ES B58TU and S58 Laser Iridium Spark Plug

NGK 93560 SILKGR9A7ES Laser Iridium spark plugs are the OE-replacement plug for BMW B58TU and S58 engines. Direct fit for G80 M3, G82 M4, G87 M2, X3M F97, X4M F98, M240i G42, M340i G20, M440i G22, and 2022+ Toyota GR Supra A91 with the B58TU. Heat range 9 — matched to the high-output direct-injected platform.

Laser Iridium construction provides superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensure slow wear rate, providing stable idle, superior anti-fouling, improved fuel efficiency, and lower emissions.

• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent flashover
• Pure alumina silicate ceramic insulator — superior strength and better heat transfer
• Copper core aids in heat removal
• Triple seals prevent leakage

Replacement interval: every 20,000 miles on stock-turbo tunes, every 15,000 miles on FBO / E50+ builds. Sold as a single plug — six required per inline-six B58TU/S58.