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      10-19-2017, 07:27 PM   #2
mcdanielvzw
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Drives: 2021 X3 M40i (times 2)
Join Date: Oct 2015
Location: Jacksonville, FL

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I just went with a JB4 map 5 with aftermarket charge pipe. Highly recommend the charge pipe, I blew the stock plastic one at one point using only map 1 (13 PSI for 1, 12-17 for 5).
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