Why do you keep insisting on saying it is not safe? Is this your gut or experience talking? A properly sized system won't hurt a thing. I have many firends who have been using this on the street since the late '70's with no problems and they were using them on engines that weren't even as durable as a Mercedes engine. Unless you know what the hell you are talking about, give it a rest and find another thread to harass. Why don't you go harass the more experienced guys on the Eaton, Squires or V8 thread and see where that gets you?