I have a set on my 07 street bob, they sound great.&nbsp\\; Same sound and tone as the stock baffles, but louder!&nbsp\\; I did have some problems removing one of the stock baffles, but the people at thundermonster walked me through removing it.

 

I'd be interested in your results specific to the big radius.&nbsp\\; I can't imagine improving on mine right out of the box.&nbsp\\; I love these pipes as-is.