Lors, it seems that you don't have much experience on a motorcycle yourself.
If you are riding in the blind spot, it's your fault. You have to ride defensively at all times - you have to think for all of the other drivers on the road, since they are mostly not thinking. You have to ride like you are invisible, because in most cases, you are.
Loud pipes don't change that fact at all. People drive while talking on the phone. People drive while listening to loud music. People drive at 55+ mph with the windows open and have loud wind noise in their car. Your loud pipes won't be heard until you pass them - when it's too late to have any potential safety impact for you.
If the sound of your bike is your only concern, you haven't understood riding at all. The feeling of being "outside the cage", enjoying the sights, sounds and smells that are often lost when you're in a car. Having a wide view of nature, not limited by the windshield, roof and hood of the car. The feeling of leaning into a curve and being part of the ride, rather than just being strapped into a seat and not "feeling" the road at all. Understanding that the journey can be more fun than the destination. And much more.
There's a lot more to riding than just making noise and drawing (mostly negative) attention to yourself.
Think about it.