Thread: Emissions test with Tune
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      05-29-2020, 01:47 PM   #4
BoyOhBoyyy
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Drives: F30 335i
Join Date: Mar 2020
Location: San Jose, CA

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Curious to hear more about this as well. Normally, you'd have to switch out your downpipe every year and completely uninstall the tune before coming in?
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