i have a jap Spec STI7 recently i added 1 1/2 gallon of C16 raceing fuel to a full tank of gas ....it worked great no det and to me better proformance oh where i live we get 93 95 ron fuel at best ...if any one has any comments please .

 

Yep, I don't believe that it has improved things, please send me an airline ticket and pick me up when I arrive and I will come and check it out for you.

Mike.