there is a new style coming out that i have been waiting for over 7 months better collector and bigger runners,i have been in contact with the man who has built it and will be selling it soon,unfortunately the company he got to make it has sold the design to many other shops,his will be sold made from 321 S/S 3mm the copies will be made from 303 S/S 2mm,hpi will also be selling his manifold at a huge price,
here is a pic of the copied one.
by the way this is direct replacement.