I'm having problems with smog. I need to get a stock cat to pass emissions. I have 2003 and a 1995 civic so i was wondering if it would fit.

 

No, 02sensor is diff for one.

 

How would that effect the cat?

 

well 2003 is for lev only...and plus it will not fit...if i am right there would be and o2 sensor located on the end of the cat...what is your reading for your smog result...

 

Well i'm having it done through the BAR due to an engine swap. With the BAR my nox and hc are 2x the max, but i just got a pre test the hc was just a point over max. They let the car run for a while though. I drove the car long and hard for the BAR but they purposely let it sit. So man thats too bad it wouldn't fit... I guess i'll have to find another way.

 

just put on a magnaflow one then...if you can try to retard your timing a lil bit...then you might be able to pass you smog with no problem...but knowing the bar they will definatly check your timing...damn jerk...lol..good luck

 

It already has a magnaflow one on it. Yea i want to find out if theres any like range like 15-17 or something. lol...i know... thanks

 

I know of a who has a stock '95 integra cat. Does any body know if a stock it would fit my '95 civic?

 

Another question I have is I might have integra DC headers not honda (I bought the car with them). Since I have a b18 motor in the car would the headers have to be integra? Is '95 stock integra cat and '95 stock civic cat interchangable?

 

the integ cat will fit if your running the b18. well id imagine u have integra header since its a b18....

 

So if the headers are for an integra could I still use a stock civic cat... in other words do stock integra and stock civic cats have the same bolt locations?