I am keeping the stock pipe on my bike, the folks at Honda did a good job making it have a nice tone without being loud. Decent burble I can hear while riding but only just barely over the wind. I really don't need anyone else knowing what RPM I am at as long as I can hear it myself I can use it to guide my shifting. Plus the last thing I want is to wake the neighborhood when I leave early or arrive home late.

I once had a VW pickup truck, 70hp, which at one point had a broken header. I bring up the power and model just so you know how ridiculous it was to drive around at a Nascar sort of volume. I hated driving it for the week it took to get parts.

I don't mind nicely tuned exhausts, you can make a bike sound really nice compared to the near silence out of so many stock systems. Somewhere around 80-90db both sounds good and is auditory to the rider.

Tinnitus is no fun, the wind noise already aggravates mine as is. I wouldn't risk a ride on my neighbor's Harley for more than a couple minutes, must be something like 125db.