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2015 Ford Mustang GT. 48,000 miles. Catless long tube headers and tuned on E85. Warmed up car and drove 30 seconds before I got a p0351 and p0354 code. Replaced all 8 coils and plugs which were gapped at .030 from the car previously having a Whipple blower on it. New plugs gapped at .050 ...