I have their single exit 4" quiet tone (think thats what they call it) system. It has the quiet tone front pipe (a baffle in it to help reduce noise) and a large muffler. It wasn't as quiet as expected but will suffice. The setup is too new to give much feedback on longevity. The tip looks nice that came with and the fitment is good. For the price, I think it's well worth it.
C-ya