So i have a f56 mini coop with a jb4 tune and i wanted to convert it to e85 found out its only for N18 engines or they just don't have the hardware out for the B48 engine/3rd gen, so i thought about water and meth, learned what it does/works but now i want it. i dont know whether it will work with my jb4 tune or i need to go to a mechanic and have them tune it for me without any piggy back or if the jb4 tune is already preloaded with a water/meth tune and do i still need to get a controller for it? i was looking at AEM for the kit https://www.summitracing.com/parts/avm-30-3350

 

https://www.racdyn-usa.com/PROD/139+...xoCPBYQAvD_BwE

You will need this too, to be able to inject the water/meth mix.

 

that doesn't exactly answer my question but thank you for the tip

 

If you add water/meth the performance gain will be from cooling down the incoming air, the jb4, If im not mistaken, doesn’t have the stage tunes that you are looking for. If you go with a real tune, they can tune for the water/meth.