6x kälter NGK Iridium Zündkerzen HR8 - für WC34 Stagea RS4 RB25DET Serie 1
83,89 €
This is good for modified engines and can help prevent detonation or pre-ignition caused when the spark plug tip gets hot- causing a 'hotspot'. Colder plugs transmit heat away from the plug tip faster to avoid this.
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