I read somewhere that it is possible to fit the exhaust downpipes of an RC36II (>1994) model to an RC36I (1991) model. Is there anyone with that experience?
And what's the use of the bulky part at the end of the downpipes towards the muffler (see pictures)?
Are you sure that's a late collector? It looks like the early version (same as you've got already). The function of the large expansion chamber was probably to reduce sound.
I haven't done it either, but the consensus view on the old List was that the entire late exhaust system would swap over, but this would have to include the later version end can (which might need a new upper mounting bracket). As noted above, the center stand also may not fit.