This thread finally broke me down. I was going to wait till next season to add the tune. Found myself checking this thread daily. I have not seen any real issues reported (except broken axal) and no CELs.
Heck with it. Who does not want more power? (more on that later) I'm telling myself I will be conservative and only use Map 1. I lie to myself a lot.

When I bought my 2011 Evora NA I was happy with the sub 300hp output. Then the S came out with supercharged 350 hp. I told myself my car was perfect where it was. I kept telling myself the more horsepower is overrated. Even convinced myself of that fact.
Now I have gotten used to the effortless power of the Emira and I'm hooked.

The dollar per hp is so low with the JB4 it is hard to pass it up.
I Promiss this is my last mod. At least till the next "gotta have" mod