[Perfectlap]

I have them and after having looked at them before they were installed, all I can say is Taiwan is making a very convincing (looking) product. I've handled cheap headers That looked like crap and were sent back. That was maybe 10 years ago.
Things have changed. As for Fabspeed, it's usually not a good idea to make waves in small community ponds. It will bite you quickly.

That all being said, the sound and performance are awesome.