GPZ900R

Hi people,
Any one know if a current model pipe, such as ZX9R, ZRX, GSXR would fit to a GPZ900R? Can be standard or aftermarket.
It is getting hard to source original pipes and the current ones should be better / lighter anyway.
Slight modifications are OK.
Thanks
Any one know if a current model pipe, such as ZX9R, ZRX, GSXR would fit to a GPZ900R? Can be standard or aftermarket.
It is getting hard to source original pipes and the current ones should be better / lighter anyway.
Slight modifications are OK.
Thanks