All I can say is WOW! Things are moved around a bit under the hood on the 600 and it does make less noise than the 555. It also does not smell like a diesel, I was scraping the windows on sister in laws VW TDI the past few days and was smoked out, walked around truck tonight and it did not smell at all, it has a small oder of exhaust but did not smell like diesel. I hope I get a few hours of sleep tonight, I'm driving it home to FL tomorrow! I'll get some pictures up by friday!
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