So im in the process of swapping a motor into my hatch.
and was wondering what cat would i need to use so it can pass the smog bull.
info..
94 civic cx.
swapping out a d15b something.
putting in a gsr/b16
so jw.
also not even sure if this post is in the right spot.
but yea thx for the help in advance.

 

WOW!! yall get emissions in texas?? here in mass 95 and down no emissions ...but i would say keep the oem cat or jus get a high flow cat any of the two would do good

 

**** i would love to use the oem cat. but its the top mounted cat. right after the headers.
so its no use!.
i was thinking of using a highflow. but not sure if it would pass

 

well go with the highflow cat its not different from the oem cat ...worst come to worst jus buy a testpipe lol

 

well if im not mistaken the high flow cat is just a staight through peice and the OEM is partialy filtering the exhaust so passing is a big maybe but no hurt in trying

 

the only thing its gonna hurt is my wallet
and im already on a tight budget
i was trying to find a stock cat from a different hatch.
would this bolt up to gsr headers?

 

get an oem integra cat or one similar that goes under the car between the header and catback exhaust.

 

when you go to get it inspected they should not check the emissions. every time i go to get it done no one has ever checked it.

 

thx you. the best answer i gotten so far.
i mainly wanted to know which cat i should use.
i should of made it more clear.
so i would need an integra cat.
will that bolt up to my n1 style exhaust?

and the the other statement.
it all depends on where your located in Texas. in my county they do emissions test
i know cause my old hatch faild.
then my coupe failed
so im tired of having to fix **** after i fail
so im trying to prevent it from failing before hand.