Gpz400 A oem exhaust on kz750 H1???

Hi everyone.
Finally getting somewhere with my little protect.
But turns out the aftermarket exhaust parts I found with the bike are cattle trucked.
So…
Gpz400 A oem exhaust on kz750 H1???
Anyone know of any "serious" issues with trying this?
Obviously it won't be perfect.
Prices for the Kz 750 in the uk are crazy?
I can even get z1000 systems for half the price.
But i assume the headers are far to big to even consider modifying?

400/4 will fit 500/550 and maybe later 600 ninja with some adjustment to the rear hanger. The exhust gaskets are all the same from 400 to 1100, but the bends are all different I think.

You need 650/700/750...I sold a really nice one for £130 recently on ebay uk, if you are on a tight budget get some decent downpipes and collector then graft a tailpipe onto it. You might even prefer the result-this is what I did on my avatar 550.

You might even get lucky and find a Predator stainless, they are awesome . Sounds like a Stuka dive bomber and really nice midrange power.

Damn,
Kinda thought that might be the case.
Thanks for the confirmation on the 650 though, iv been looking at few of them to, and as some aftermarket one say 650 - 750 I was assuming the factory may be the same.
ThanX again.

Hi guys.
I actually managed to get an original full stainless and chrome set. So I'm over the moon with them.
ThanX again for all the advice.