3.8 EGR Parts

Can someone please tell me what this part (http://community.webshots.com/photo/307662233/307663555AcaEoC) is off of my 3.8 EGR? system. I dont know too much about these engines. Where can a replacement tube and about how much will it cost?? This is what the gasket looked like too (http://community.webshots.com/photo/307663575/307663575jeivjX)

thanks alot guys

Steve

EGR PIPE ASSY
Part #: 24506482
www.gmpartsdirect.com

Thanks i ordered one today and it just came it