I've got a 750 and am wanting to try a hack job on the stock cans just to get it louder... I want to have a spare set around to use so I can still ride if I screw them up bad enough. So, will cans from a 900 fit my 750?
Let us know how you make out. I bought a used set of cans many moons ago on ebay and had them shipped to an old member here for the very mod you are doing. He did a half core and mailed them to me... Ended up costing me around 200 total with shipping (50 for the cans, 100 for the mod, 50 total in shipping).
The half core is perfect, gives the bike a little more sound without the obnoxious loudness of the typical cans. I get a tonne of complements on the sound.