Excessive carbon build-up and a worn electrode can wear out these plugs, so replace them as a part of your regular maintenance.
R56 NGK SparkPlugs (1 step colder)
$69.99
These are for tuned cars looking for colder plugs. Stage 2 tunes or higher.
Required to be gapped to 0.024″.
Takes a 6 point socket, not the MINI standard 12 point socket.
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