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2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning Spark Plugs and Stage 2

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      06-09-2021, 01:22 PM   #1
kuzdu
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Spark Plugs and Stage 2

Question, do you need to change your plugs with a different gap once going to stage 2?
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      06-09-2021, 01:29 PM   #2
KennyFSU
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Not required but if you have over 50k miles on the plugs it's always a good idea to change them. Some even run colder step plugs.
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      06-09-2021, 06:46 PM   #3
helloelectro
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Most people with tunes will rotate the plugs more frequently. 15k miles seems to be what most say.

What you should do before gapping any plugs is check your logs. They will give you a good indication if you need to adjust gap or not.
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      06-10-2021, 08:31 AM   #4
kuzdu
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so far the logs are good and clean from jb4, i only have 8k miles so probably around 15k ill swap them out. Thanks for the replies.
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