Yes the exhaust is mighty close – ie. virtually touching !
The exhaust pipes will have to be welded inside the stub ( 48mm ). I hope to get the money together to have a set made in stainless. Plan b is to get a few random bends and get it knitted up by the welding fairy.
The idea for the plenum involved using a VW Beetle alloy valve cover !
Would have looked the canine’s cajones, but was just too big to fit in ……. ah well, back to the drawing board.