My truck is a 2004 CC 4x4 with a leaking manifold as usual. From reading many forums it seems the only fix (cost effective also) is some headers. I live in Canada and am exposed to harsh winters. My biggest concern with headers is rusting from all the salt and crap on the roads. Would rather have shorty headers and am thinking of doing s full exhaust replacement. Any suggestions, and what header choice will resist the lovely weather here in Canada.