Wash your car on the underside and you won't have a problem. The aluminized piping can last 10+ years easy if you take care of it...
http://www.bnmotorsports.com
"And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."