Hello all, I purchased an 06 GT last year. Has full exhaust with LT headers and CAI. I know for sure it has been dyno tuned but in another province. Where I am we only have 91 octane and it possibly was tuned on 93. I find car very lazy in lower rpm’s. Thinking about a re tune with an SCT or similar device. Is this my best route? Dynos in my province are very few. Is there much difference between 91 and 93 octane when it comes to tuning.

 

Not much IMO as knock sensors compensate for it as 93 is not available everywhere.