We now have our own stainless steel down pipes. They fit 04.5 to 2010 6.6 Duramax. Our 100% stainless down pipes clear all after market up-pipes better than any other. We will have ceramic coated pipes in a few weeks.
http://allseasondieselperformance.com/index.php?main_page=product_info&cPath=83&products_id=384
http://allseasondieselperformance.com/index.php?main_page=product_info&cPath=83&products_id=384