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With those mods, you should not have a pinging issue. Is the SCT tune a generic over the phone tune. I got my tune over the phone and had a very slight ping under 2K rpms. I just went into the SCT tuner, backed the timing off 2 degrees for 0-2000rpms and it helped a lot. I run 93 octane gas as well. Putting a lower thermostat is treating the symptom, not the cause. Back the timing off and you won't even feel the performance difference and the pinging should go away. :bigthumbsup
 

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With my SCT, there is no "93 octane Tune" that you can pick. Most places that you buy a tuner from has a good idea with a list of mods how much they can advance the timing and fuel. Thats why I call it a generic 93 octane tune. It's kind of guess and check for them but they are usually close. Thats why I only had to back the timing off from 0-2000 rpm's and mine was good.
 
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