:)I decided on the Nova Rossi Plus 21 - 5KT engine and I've bought a Hong Nor 2062 pipe and a JP3, if neither of those work I'll try the 2047. I also ordered the Hong Nor semi circular type manifold to try in place of the double bend one that came with the HN 053 pipe my son is currently running.
What's the difference between the two bend manifold and the rounded semi circular one?:)