Yes they do.
I plan on running the flex year round like I do now.
I have to data log with 93 first, then E and then I get a flex tune.
He also said that dedicated E tune isn’t more powerful than me running flex unless I’m getting full E85 race fuel.
Dedicated E tune requires E70+ .
All I get is...
Purchased the HP tuner and Wengerd tune today. From all the reviews, I’m really hoping for a noticeable improvement in my 10-speed compared to the Livernois tune I have now.
Well, today I Bought the HP tuner and Wengerd tune to replace my Livernois tune.
All the research and reviews show his 10-speed tune in noticeably better so hope it works out!