Hey guys, thanks for the help in advance. I am looking to upgrade my exhaust to 4" turbo(downpipe) back since my 03 came without cat. My question is which exhaust metal do I want? Aluminized (which is basicly what comes from factory and is much less expensive) or T-304. I know I don't want the T-409 due to the rust factor. I live In South Carolina so the winter weather (snow, road salt, etc) is not an issue. Dont want to spend more money than I need to. How do the rest of you feel about this and have you had any issues with your systems. I am looking hard at the MBRP systems. As always thank for the help!