not know what model bike you have makes answer a little hard. Sorry didn't see Judge
Yes you could use Harley mufflers But.
You have to check the length and your going to have to cut there mounting tabs off or your going to have to make some kind of sturdy mount.
Nothing to it just money and time
Please add your state and model of bike you have. Click user CP @ top of page and then far left click edit signature. Thanks