on your theory that using stainless steel for hardpipes is a terrible metal to use because they will transfer more heat to the air entering the engine and therefore produce less power? I haven't heard anything back from you on that and I'm not convinced you actually know what you are talking about either.. Do you know how much time the air passing through a 4" long piece of metal pipe has to absorb any heat from the pipe itself? Do you know that aluminum requires constant attention to keep looking respectable and stainless could care less?