Prior to purchasing my car the exhaust was redone. The car was female driven so im 99% sure its stock, not catback or anything good. Its a 95, team integra said there was a range of sizes up to 2". If you did your exhaust and remember the OEM size plz reply. and being that the pipeing is pretty new, can i just do 2" headers if the pipe size is 2"? thnx