Thread: Do i need a retune on ess supercharger w/ stock cats?
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      05-13-2017, 10:51 PM   #2
SYT_Shadow
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Drives: E90M/E92M/M4GTS/M4GT4/M6/X5M
Join Date: Sep 2010
Location: Greenwich, CT

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Probably nothing, but ESS will usually provide the tune you need for free
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