I've had mine for about 3k, got a CEL about a 1k after having them on, came on intermittently every so often, did the steel wool trick last week, it went out and hopefully it wont be coming back!
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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs
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