99Stang_V6

ive heard that the check engine light hinders ur performance...is this true?..if it is...how bad does it bring down the performance...i just got my extensions and put em on so i wouldnt have a check engine light on and didnt really feel a difference...or maybe cuz i didnt floor it that bad...but can someone answer my question

AtlanticBlue99

no

the light itself does not, but why the light is on might. like if you have a misfire in a cylinder you would run on 5 cyl, not 6 and that would hinder perf.