Hey guys has anybody used these befor? what are they like compaired to z32 afms? I have a couple on my motor that I am putting into my car just want to know if they are ok or if I should replace?. motor was tuned buy mines with hks 2530s mines afms and mines ecu I will put it on the dyno when installed I just want to know if you have used them befor, what are your thoughts. thanks