Holy schnike I just saw the buy it now price.

I don't even want to think about what I paid for mine. That was 5 years ago though, and the pipes don't show any sign of stopping soon.
I have a lot of experience with these lol. I bought a set before these for a Kawasaki (so I've owned 2 sets,) and my buddy put a set onto a Roadliner right before I got my Roadie.
Hardkrome had hit or miss build quality from what I gather. My first set and my buddy's set installed with no problem, but these gave us every bit of grief imaginable. Incorrectly spaced parts, bad welds that quickly rusted, you name it. I've never been able to get the 2 pipes to completely disappear into the muffler like they're supposed to; there's always a gap there and sometimes I have trouble with a small exhaust leak at that site. I also have a big blue spot on the back tailpipe bend that showed up after a month long ride. My buddy on his Roadliner, no problems ever. Perfect fit, perfect welds.
Sound is hard to describe, but I can say...absolutely do
not buy these pipes. Unless you like a very deep, throaty muscle car sound that's completely unique and turns heads.

Can be "quiet" at idle, but really cracks like a straight pipe wide open, without the "hollow" sound. The noise these make in-between shifts is worth it alone. They have only gotten louder and better sounding with age too.
Maybe I can get a sound clip or 2 on later after work if you're interested.