The cusco extractor should be in 4-1, and got a ball on the bottom, cusco mark on it, well, quiet nice price, althought it fit to supercharger, actually it do fit to 16v, if 20v have to mod a bit to fit it in.
need a little help here... my gsr cam cover cracked so i was thinnking of replacing with a mivec head. is it possible to do up mivec turbo this way considering safety and extensiveness of the total modding package?