I just got my mil eliminators, and after about 40miles, the light came back on after resetting the light. Anyone know why these are not working?s</P>

 

same happens to me, they are not 100% reliable, What I do I erase the codes from the ECU when it happens with an OBDII scanner....hey man did I tell you about the Spintech mufflers?.I got them.ditch the Magnas, .I heard them on a MAch1 and man, what a rumble...........Im sure you'l lovethem since you are a prior Flowmaster guy.....