At my power limit with current 93 octane fuel-
e85 is not Available anywhere around me-
So I’m thinking about aem meth injection

 

It's a tried and true fuel supplement. I was always wary of it, seeing as it's adding another potential fail point. Though, I believe there are systems with failsafes in place that if the meth isn't firing, it'll cut timing to prevent detonating the motor. Still, if it's your only option, there are plenty of builds using it with great results and little to no reliability issues. As an added bonus, it'll probably help with preventing future carbon build-up on the intake valves.

Just curious, where did you find the power limit to be with 93?

 

not sure of the power because I haven’t dynod but boost is at about 27psi and I’m consistently running 13.2 on a dragy with a fairly lazy 5.2 0-60

 

Damn ... impressive. With those times, you'll be sticking right with an S4 on the street. You'll be hurting some feelings of brand new Type-S owners as well.