FWIW I have these exact ART pipes and have ZERO vibration issues! Also these are also TITANIUM CERAMIC COATED! The only thing you gain on version 3 is the tabs and they're chrome looking....
Also you will NOT be able to re use his gaskets. Trust me and the troubles I've gone thru trying to use gaskets with these. Motordyne now includes RED RTV with the kit rather than gaskets. Do yourself a favor and go to Walmart and grab some for $3.
This is a great deal