In my opinion there is no more over rated product on the market. I hear they can throw long shadows at noon.
They are a decent product, not any better than anything else in their price range. Dart, Brodix, Profiler, etc.....
The stories get bigger and bigger every time they are told. I also feel that their tests and demonstrations are rigged. This magazine crap they like to put out is all pre-determined outcome.
As many of you know I can go on and on and on....
But the bottom line is no, they are no better or worse than any of the leading manufacturers. They just have better advertising.
I was told by one idiot, there is no car on earth that won't make more power and be faster than with AFR heads.
I think they send a gallon size of Kool Aid with every purchase, because many ( not all ) of their customers are just weird.....they are like drug pushers.