as far as my car...its a 95...OBD1...OB2 m3 cats theres no point of taking off cuz of how good the design is...loses power...as far as OB1 there super restrictive ..i did tons of research before takeing them off cuz i was scared of big pwer loss but Dyno charts so no low end trq or hp loss but plenty mid range power gain...i know wut im doing..and you have no clue wut my setup is anyways
as far as my head lights i like for the most part and thats a mustang...not a BMW..BIG diff there... i dont have $$ for hen ones i want.