i was lucky enough to score NOS exhaust pipes from header back ( including nichira resonator), but not the muffler. after scouring the net, in concluded that it is a round muffler, with a center inlet and weird offset outlet that then has tailpipe that comes back to the centre. i found that reback mufflers make a bunch of generic mufflerz, so i bought a 336L from truefit in moorabbin ($100), which is a 16 inch muffler with dual offsets. and it doesn't fit. looks like a need a centre/offset one that is a bit smaller,
the question is:does anyone know what size will fit?