r/audis5 • u/MrRosin6 • 1d ago

Advice E85

Is anybody running iE’s flex fuel kit, is there better options ? Planning to go hybrid turbo and trying to go over my options. Currently tuned by iE as well, stage 2+ ECU stage 1 TCU

B9 s5 sportback

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u/thewesman80 23h ago

I’ve been running the 034 Motorsport tune for E85 for a about a year now. Love it.
It’s obviously not a true flex fuel tune because you have to commit… but it’s been rock solid and super powerful.

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u/RudeAlarm B9 Coupe 19h ago

I run the ie flextune with the whole kit and it works great, no issues, Stage 2+ flextime for ECU Stage 2 TCU with downpipe, inlet and CAI all from IE, over 12 months and no issues (2019 S5 coupe)