first, who makes that????
second, where can i get that???
third, is it carb-legal???
fourth, will it set the CE light????
fifth, is that a 4 to 2, then a 4 to 1??
sixth, please don't let that be a Honda example picture, because it seems it would be perfect for the b16 in the Si........
Looks nice, if it fits your car and it can be bought cheap enough, buy it and drill holes for the O2 and EGR. If you're not welder handy, have someone weld threaded fittings on for that stuff. If the header is cheap enough it'd be worth it. Although it'd be tricky with that chrome finish I suppose.