M156/M159 One Step Colder Spark Plug

Designed and developed by NGK, the engineers at Premier Tuning Group have identified a perfect spark plug for your M156/M159 powered Mercedes AMG. It's extremely durable electrode and the ability to handle high boost pressures makes this spark plug very desirable for any M156/M159 boosted or 600+ HP engine. Note:  All PTG spark plugs require proper gap by the installer. Below is a guide for best practices. Key Features: Simple Replacement & Installation Fitment for the M156 & M159 Engines Extreme Duty Compared to Stock One Step Colder Than Factory Set of 8 make-mercedes-benz,make-mercedes-benz-model-c63,make-mercedes-benz-model-c63-year-2008,make-mercedes-benz-model-c63-year-2008-type-m156-6-2l-v8,make-mercedes-benz-model-c63-year-2009,make-mercedes-benz-model-c63-year-2009-type-m156-6-2l-v8,make-mercedes-benz-model-c63-year-2010,make-mercedes-benz-model-c63-year-2010-type-m156-6-2l-v8,make-mercedes-benz-model-c63-year-2011,make-mercedes-benz-model-c63-year-2011-type-m156-6