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      06-27-2018, 11:37 AM   #8
frankiebones
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Drives: M3 CS
Join Date: Mar 2016
Location: Long Island, NY

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Quote:
Originally Posted by swifty View Post
Seems like a tedious process. Consider opting for BM3 as it's very easy to go back to stock etc and do not require the help of 3rd party.

If not, just install the HAS and see how it feels.
BM3's tune IS based on the current iStep. so, as I understand it, you need to tell them what iStep your on to get the correct tune.

I have Hex Tune stage 1 and am very happy with is. I can flash back to stock if i need to, but would like to avoid plugging the car in at BMW if I can.
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M3 CS with M Perf Exhaust
Retired - Yas F80 - 6MT - Hex Stage 1 - MPHAS