One Step Colder Plugs M157

NGK One-Step Colder Spark Plugs

One-step colder plugs are designed to dissipate heat more efficiently, which will bring down combustion chamber pressures and prevent pre-detonation.

These plugs are highly recommended for modified engines or engines undergoing extra modification soon.

These plugs are not recommended for stock or close-to-stock power vehicles because the cylinder temps do not get hot enough, which can cause carbon buildup on the plugs.

Set of 8

Explore all the performance parts VRP offers for the  63 AMG/550 M157/M278.