M157 / M278 NGK Laser Iridium Spark Plugs 2012-2015 ML63 AMG M157 2019-2023 GT63 (s) AMG

2019-2023 GT63 (s) AMG

- 2013-2016 GL550

- 2015-2017 S550e

- 2013-2018 G63 AMG

- 2015-2022 C63 AMG

M157 / M278 NGK Laser Iridium Spark Plugs 2012-2015 ML63 AMG M157 2019-2023 GT63 (s) AMGNGK Laser Iridium Spark Plugs with a one step colder heat range are essential for optimal performance in tuned M157 and M278 Mercedes Benz engines. Pre gapped at 0. 032", they reduce misfire frequency even in stock vehicles while being critical for maintaining reliable ignition in modified setups. Featuring a platinum disc welded to the ground electrode for durability and trivalent metal plating to resist corrosion and seizing, these plugs deliver