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Aug 16, 2020 | 11:00 AM

#1

myminicoop

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Performance mods

I have recently had to replace my 05 mini cooper s engine. I have since put a 4%crank pully and 16%supercharger pulley, stage 1 clutch and vivid racing headers. My question is, will one step colder plugs be enough for keeping cylinder detonation from happening or will 2 step colder be better.
thanks.

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