My friend just did it to his oldass n/a prelude and it hauls top end better than before, but he does lose on low end and supposedly it smells funny...-er...than before. my other friend drives an n/a rx7 and it helped his top end a lot more than previous too. from personal observation, it DOES work so unless you have dyno results to prove that it doesn't work or you've done it yourself to say it's a waste of money, then with all respect, stfu.

on the other side, it's a federal offense to be driving without a cat. $2,500 fine. you're gonna kill or endanger us all and give us cancer, you'll be laughed at for paying an unreasonable amount of money for your mod, and you won't pass smog...with the exception of the last thing, it's just like street racing.

does anybody know how often you have to get your car smogged? mine is a 2000 and i don't want to overshoot the date and not get my car reregistered when i should.