this is true, it does release nasty exhaust gasses,
try telling that to v8 muscle cars
besides that, i'm just letting the guy know that you can free up a couple hp, from removing the cat, and yes you feel a difference, i have been in the game for a long time, i've been there and done that,i'm not a ricer wanna be, but if you live in a state that makes you have a cat then , yes a high flow cat will work, then again if you build your motor to much, you will have smog problems anyway, owner makes his own choice, just my 2 cents