some dude on club s12 i think has made one which would be an easier fit as it is simply 2 plates bolted together rather than what looks like a cast piece about 50mm flange face to flange face
i've had to grind asection of mount away from having a t3 witha t3 flange just welded onto the std manifold, so this i expect to be a straight no go unless you've made a whole new manifold