Can I increase the HD in xbox from 200 to 300 GB?

Am I able to do this? If so, how?

Thanks.

Yes you can add up to 500 gig. I dont think there are any bigger that are still ide. Does it have any mods?

Yes..

I think it's a soft mod w/ a Avalaunch dashboard.

the default Xbox HD is between 8-10gb, so you've already modded a new one in there....

No.

I have Exoloution X installed on it. With 200 GB HD. I want to know can I just transfer files to the 300 GB HD and install? Or is there something else that I need to do first?

Advice needed.

Thanks.