[thurstonhowelltha3rd]

Hello everyone. I am interested in buying a 2014 M6 and coming from the n54 world I have a few question about possible hp gains.

1. Can the f13 m6 run e85 with a tune? If so, What concentration?

2. Has the jb4 been known to be problematic on this platform?

3. Is 650whp a possibility? If so, what is needed?

Thanks in advance for all responses.