just ordered my jdm dc header last night and now i'm looking for a cat. i want to go w/ a carsound cat, but after all my searches a lot of people are talking about how they die on them. now knowing this i don't wanta get one if it's gonna die on me in like 3 months. what should i get or should i just stick w/ getting that one?

 

get im not sure if it will give you all this amazing power but im sure it will help free up and help your car flow better .

 

Save you money and get a test pipe. I went through my carsound cat in like 5 months. So I just gutted the cat .

 

If I gut my cat what is the interior diameter? Will it be too large and reduce the exhaust velocity?

 

that's what i was gonna do, but i won't pass state inspection w/out a cat. oh well i guess i'll just change it out once a year.