hi guys im looking at putting an red STi manifold onto my gc8 or something that will improve flow and i will be happy with in the long run, really trying to neaten up my engine bay for motorvation i have a 207 short motor with the 99 heads wich have been machined etc etc from MMS what manifolds from what years will bolt straight on? looking for opinions and if youve got anything

cheers in advance
kristian