What is says. off a 1999 Tacoma 4 cylinder 3rz-fe engine. Has both parts (4 piece collector into 2 piece collector). Gaskets may be around might be done. I still have the heat shield too. It had been cracked(what they all do) previously and has been welded. The welds are not new they were in the truck for a few years (should be fine?). I just want someone to use them - make me any offer you like.