:lol: looks like the same old Chinese crap to me. You are better off contacting http://www.mengheader.com.au or http://www.6boost.com/ for a manifold. Meng can get in a Malaysian made SS manifold (much better quality than Chinese) for around $650. It is genuinely 2.7mm or for a custom order you can get a 3mm one made up as well if you are prepared to wait up to 6 weeks. On the other hand, you can contact 6Boost and get a 3.6mm custom steampipe manny made up for $1000 with new gasket, studs, nuts, and lifetime warranty :wink: