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      02-23-2021, 09:35 PM   #5
thejeremyman9
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Drives: 2015 BMW 335i
Join Date: May 2019
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Quote:
Originally Posted by Issa.M View Post
The time has come to change my spark plugs and I am looking to add bootmod3 stage 1 on my f30 335i xdrive in the near future, maybe 5k miles. I ordered the NGK SILZKBR8D8S (97506) and bootmod3 recommends to gap them to around .023". Will it be fine if I gap them to that spec with no tune or will it cause a rough idle? Let me know your thoughts and experience. Thanks
Don't fall into the colder plugs smaller gap trap. Stock plugs stock gap. Read more here if you want to DIY: https://f30.bimmerpost.com/forums/sh....php?t=1709198

You want the largest gap possible without having misfires. Stock plugs stock gap are proven to work for any stock turbo application, and many push even further with PS2, meth, Emixes, etc. The best approach is to do stock plugs stock gap unless you have problems, then change.
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Issa.M1.50