Direct bolt in replacement for the catalytic converter. Of course, these are not intended for street use in areas where smog laws apply.
Comes with 4 new bolts for mounting since those nasty heat-rusted bolts in your cat are probably going to break when you go to remove them.
Comes with a complete set of gaskets.
Unit comes painted in high temperature resistant black satin paint.
Test pipe fits 1.6 1990-1993 and 1.8 1994-1997 Miatas