the zisco is SS yes ?? get a SS tdo4 3bolt flange and weld it on , downpipe is custom jobby best made from scratch get some mild steel flanges or plates and some pipe and make own downpipe or again use zisco 1 and shop of the flange and reweld new flange on it this al needs tig welding id say as im not sure on the ss mig option ?? no need for management if you stay under feul cut on the tfo 0.8bar is grand runs a bit rich but works are you fmic ? or topmount i used topmount to great effect turbo outlet facing down for fmic setup but with a pipe 180 degree back up to