hi all have just fineshed swoping the downpipes on my gk73 sp
with a set from a 400 bandit this turned out to not be that bad of a job all tha is needed is a set of b4 pipes a b4 sump and scavenger an a sump gasgit (b4 an gk73 arw the same part number ) an a slit mod to the belly pan (not yet done )this has got me out of the hole of not being able to fine a good set of gk73 1's
if any one wuld like to know any more plase ask . jay

Thanks for the advice, I'm having a hard time finding down pipes as well. Plus some aftermarket pipes for bandits look so much better than the gixxer ones