well now that the whole story finally ups itself, then yes, i will say since he was wanting to do some sort of experiment with C16 on your car it'd be his fault since from what you say, you never intended running a race gas tune.

the way you came off is that you had the mindset you were going to be the most powerful stock turbo sti in the country, or that was the goal. and im not even going to begin getting into the stupidity of that topic

so in summation, i appologize for busting your balls, but when you have detonation, you have it for a reason. you would have been better off turning the boost down and driving it grandma like till you had it retuned.

now...i am curious, this 2nd tune you got here locally. the motor let go after this new tune?