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      12-11-2012, 08:59 AM   #3
Sam335ix's Avatar
Drives: 335 ix performance edition
Join Date: Sep 2011
Location: Redskin Country

Posts: 1,276
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Originally Posted by Abear View Post
If you are installing the flex fuel wires...just do the ISO mod while youre in there. It will take an extra 2 minutes. It makes the car feel so much better. But I guess to answer your question specifically, yes, you do need to at least update the firmware to the 8/17 update.
Thank you
2011 e90 KW V1, JB4, BMS Dp, BMS Intake, CP, Alpina Flash, ISO, E85

Coming soon to the garage: 2014 M3 Maybe M5
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