They work fine. No need to routinely run race gas for track events.
The ECM is tuned with the SC to run "pump gas" and really is no different on the track.
by way of example, a PWSC equipped ZX3 won the September focus Challenge at Summit Point last year.
Mike routinely does 8-10 AX events each year with the car and has no adverse affects with the SC.
You should be fine.
FORMER Avenging Moderator of the Apocalypse and Leader of the Axis of Oversteer
"I live with fear every day and sometimes, she lets me race."
2002 SVT Focus... Stock
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