Indeed, I am also happy with a 4 into 1 - sidecar meant the original 4 into 4 system was removed by previous owner anyway Plus given just how finicky these things are to make to the satisfaction of restorers its small wonder they paused production, 2.5k a set means perfection is rightly expected, if they cost less than double skin downpipes etc to prevent discouloration and getting it lined up perfectly and details spot on - tricky business and by the time you account for all the returns they had setting up - I suspect they'll hold off making more til demand is very high before dipping a toe in those waters again.