ok soo ima be getting the zzp catless downpipe and hooking em up to the gm honed headers...im just wondering what needs to be done so the CEL will go off and my car will run right..tune? tricking the ecu?
all help is appreciated

 

you got a special car if you need headers use the seach button

 

^^ dick

 

thank you

 

o really? so then theres a bunch of special cars on this forum..quit being a ********