I'm tending to agree and what's ironic is that I'm usually the first to offer the same advice to others. Well crap. There goes my soundbar with subwoofer. I'm going to go for either the American Racing or Pfadt as soon as I see some dyno results. I posted the same on Gearheads and one opinion was why bother with headers if I'm just going to choke them off with cats but my response was that modern, high-flow cats are not an obstacle and that I don't want a fume headache at every red light.