Ive had unleashed 3bar 93 tune for a few months with a few revisions on my flex feels great but was thinking about going with a E30 tune I have plenty of e85 stations near me. The extra $99 for E30 tune worth the difference in performance?
2013 Ford Flex Ecoboost
H&R lowering springs
Sctx4 4bar map(Torrie tune)