I've got one. Works fine for me at BPU level. Isn't quite as loud as others. If you get the type H there use to be no mounting kit like they have for the type s. Don't know if one exist now or not. You'll have to get creative. There is a pic on my web site.
I have the RFL and MKIV mounting kit on my car.
I like the valve, its plenty loud for me. The kit makes for a clean install, however still lacks a nice bracket to hang the valve in a steady position, something similar to what greddy BOVs come with.
Maybe I'll just fabricate a nice bracket, and include it in the supra mounting kit?