they come with the headers....I think they are
Malfunction Indicator Lights (?)....they are the
emissions sensors that trip the CEL lights on your
dash....the kit from MSDS also includes new
ford gaskets, so it is complete.


1999 Black SVT #2639/2760 on 08/11/1999; w/18" OZ Racing Superleggera's, Yoko Paradas.
MSDS Headers,Quaife LSD, Borla,KKM,chipped,DMD,Baer 13" Track rotors.
Lowered/HR and Koni's; HPP RSB