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      08-04-2020, 04:27 PM   #8
thejeremyman9
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Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

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Quote:
Originally Posted by 5w20 View Post
I wouldn't recommend a custom tune without going to a custom ethanol tune or if you're adding Methanol to your 91/93 pump gas tune. Straight pump gas would be a waste of money IMO.



Key missing note is that was accomplished with METH.
Agree that gains on pump gas with custom tune will not really be worth it. Too much of a octane limit and you need timing to make power.

Are you sure BMWDIYGUY runs meth? I dont follow dyno numbers really, so could be wrong, but i dont recall him mentioning it in his mod list... someone will need to dig up the thread.