Originally Posted by pinky_and_me
I have the flexfuel kit.
I think jb4 can be just as safe but it requires that you datalog every time you fill up with gas to make sure you car is running well. And also modify maps if you want to squeeze more power based on the ethanol content.
Because I don't have to do the above and I still get the safe power levels based on ethanol content I think the flexfuel kit is better.
I think I'm going to switch to Vishnu soon. I always wanted to run e85 mix with jb4 but I was scared about the whole factory fuel pump and not knowing exactly how much mix am I running. It sounds like the Vishnu flex fuel kit will give me that safe peace of mind feeling.