Make an automatic motorcycle louder?

I'm interested in motorcycles and I have been looking at the Honda NM4. My main concern is how quiet it is, If I'm on the road I want to be as noticeable as possible to avoid any accidents, so is there anyway to make it louder?

Of course there's all new bikes are stifled to get past emissions standards including noise.

But think about it unless it sounds like a howitzer most drivers will not notice it. Your best accident prevention is your observation, your anticipation and your reaction.

Loud does nothing.

It is only loud behind you. Plus will need tune the bike after you modify it.

Learn how to ride.

If you think that riding a loud bike will help to avoid accidents, you won't be riding for very long…