I've been running the Touring version of the BPP Exhaust now for about 2 months. My wife finds it too loud, but I am working on that. My disappointment in the unit is that one of the exhaust tips is a dummy. I don't have a car or bike, all 6 of them, that the exhaust tips do not turn black after a while. When one Tip is a dummy here is what you get:
Here
I have been cleaning the tip, but it doesn't take long before soot builds back up. I would think for $500, it would not have this ugly feature.
---Bob