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      04-19-2021, 09:12 PM   #1
M302_imola
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Drives: '15 X5 35i Xdrive Mineral Whit
Join Date: May 2018
Location: Tennessee

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BM3 Stage 2 w/ OEM Intercooler and Spark Plugs

Bootmod recommends upgrading the intercooler, and going 1 step colder on the spark plugs with stage 2. I know some adhere to this and some don't. Obviously, an aftermarket downpipe as well as the BM3 stage 2 license is required. Just wanted to get some feedback from users in both camps. I do worry about running high boost (17-20 psi) in the hot months to come. I'm in the southeast and it gets very hot and humid this time of year.
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