M177-M178 HKS Spark Plug set (4.0l Biturbo) G63 All ZAC Motorsport intakes are

All ZAC Motorsport intakes are designed to increase your driving pleasure by improving performance and sound

Designed specifically for rear use

Thermal Edge

customised for your specific vehicle setup

5 litre BiTurbo engines

M177-M178 HKS Spark Plug set (4.0l Biturbo) G63 All ZAC Motorsport intakes areHKS Spark Plugs to suit M177 M178 4. 0 litre BiTurbo engines. (set of 8) A noticeable difference in performance over other brands. Iridium Alloy Center Electrode Iridium alloy center electrode reduces voltage requirement and improves ignition performance and durability. Outer Electrode with Platinum Chip The outer electrode incorporates a square platinum chip which improves durability, and combining with the iridium center electrode boosts ignition