I own a 1998 mustang gt and have a bbk h-pipe with no cats. I bought the MIL Eliminators so the check engine light will turn off but, only one of them will plug in. Does any body know what is going on here??

 

I had the same issue with mine. I believe it was the drivers side that plugged up, and the passenger side that wouldnt. I had to take a grinder to one of them and smooth the tabs out on the passenger side mil. Look at the instruction manual, mine told me that i might have to smooth the tabs off for the passenger side to fit. Once i did that, they fit just fine.