Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Spark plugs R57

Old 08-12-2018, 02:34 PM
Rockett2002 is offline
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Spark plugs R57

I replaced the plugs after 70k miles. Performance was ok, but I was overdue. I bought ZR-7-SI-332-S Bosch Plug through ECS tuning and noticed immediately I don't have the big boost anymore when I floor it. I checked the gaps, .025. Any tips of this? I searched around but a lot of conflicting info out there.
Old 03-18-2019, 03:31 PM
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Cesar_lopez is offline
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conflicts ? like what ? I have does im planning to replace them with 1422 I think I lost a bit of power too
Old 03-21-2019, 04:31 PM
cyberlunacy is offline
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from what i read colder plugs lose power in cold months.
i dont know at what temp it can be felt but , thats what i read.
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