04 GT running rich
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04 GT running rich
Any help would be greatly appreciated. I have an 04 mustang and I just put an off road x pipe on, since then my gas mileage has suffered a lot and it's running rich. Is that normal or will a tuner fix this issue?
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austin101385
'10-14 Shelby Mustangs
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Oct 2, 2015 01:00 PM