Thread: Ordering JB4 for M5 Comp - Any Georgia Installers?
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      07-09-2020, 03:26 PM   #4
GranitM5
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Drives: 2018 BMW M5
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I think for the people that are worried about warranty, you should not modify anything at all. As far as any tune being undetectable, I dont buy it. If you tune in any way and shit goes wrong, good luck.
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