I have a 2000 Xterra with some serious rust problems on the exhaust system. Ive heard that this is pretty standard and Id like to replace the exhaust with a stainless one. While there are plenty of cat-back kits availabe, I havent found anything to replace the pipes between the manifold and the cat. These are in pretty rough shape and rear most metal shields after the manifolds have essentially deteriorated to the point of falling off. Has anyone had similar problems, or found a good replacement for the OEM pipes?