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Re: Stainless versus Aluminized Exahust Posted by TML [Email] (#2212) [Profile/Gallery] (more from TML) on Thu, 2 Mar 2006 13:55:55 In Reply to: Stainless versus Aluminized Exahust, Barry, Thu, 2 Mar 2006 12:57:59 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Aluminised is mild steel with an aluminium coating on it. The coating is very thin, one pass of sandpaper and it is gone. It gets sublimated away around any weld seams as well. Assuming the same wall thickness, there is little weight difference between SS and aluminised. Stainless steel conducts heat "better", that is to say more readily. This is not desirable, you want the heat staying inside the exhaust.
I'm not sure corrosion is ever "not a factor". Exhausts rust from the inside out, due to condensation of air sucked back into the exhaust when it cools. This is not really a factor before the cat, but all cat-back aluminised exhausts will rust out eventually.
posted by 142.179.15...
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