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I ain't no effin padawan
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Mike tends to use fairly aggressive timing settings, and the knock sensors retard timing. Over time the adaption channels will reduce the overall timing, so if you throw some octane booster in, do an ecu reset (disconnect battery for 1 min), you should get a bit more timing advance.

It certainly won't do any harm. Try a bottle, and see if you can feel any difference.
 
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