Hi all, I never got a CEL with these on mine and it has anti-foulers. The best bet if you are worried about it is get some additional o2 antifouler extensions for about $15 and call it a day.
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2013 Ford Mustang GT
374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd
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