Shorter dogbones to raise the rear have a couple of noticeable potential benefits. They alter the weight distribution of the bike putting more weight on the front which improves steering responsiveness making the bike more agile through corners. They also alter the suspension geometry effectively increasing the compression damping which potentially improves the handling further especially if the shock is old, tired and / or OEM.
I have no experience with longer dogbones but I imagine that you will get the reverse effects of fitting shorter ones so if considering fitting them I would recommend lowering the bike down the front forks ~15mm if not already done and increasing the compression damping on the rear shock if available / working.
You can sometimes find polished / chromed / painted dogbones but to be honest they are so hidden away from sight you only get to see parts of them when you are on your knees cleaning the bike.
Have a look on ebay for FZS1000 lowering kit.
I have no experience with longer dogbones but I imagine that you will get the reverse effects of fitting shorter ones so if considering fitting them I would recommend lowering the bike down the front forks ~15mm if not already done and increasing the compression damping on the rear shock if available / working.
You can sometimes find polished / chromed / painted dogbones but to be honest they are so hidden away from sight you only get to see parts of them when you are on your knees cleaning the bike.
Have a look on ebay for FZS1000 lowering kit.