just a questions...

got a stock d15 motor. high flow cat on it right now
and i need a stock cat to pass smog so i can start my swap and be cool for 2 years lol. anyways

cats from the d series.... are they all interchangeable? will they still pass smog?

if i put a d16 cat on a d15 will it pass smog?



i know its a retarded question but it got me curious.

 

was a serious question.. lol

 

yes they are interchangeable and you should pass smog

 

thanks.

 

measure the lenght of the cat most are 16in (i think) and go off of that. and the clockin' of the flanges. i have ran into some trouble with after market header lenght

 

should work my cats from a ek just make sure the smog tech dont run the #s iv heard they can fail u if u have the wrong cat

 

I pass every time with an EK magnaflow cat in my 91 STD w/ b18b1 swap.

 

go to south central l.a. and get a new universal one installed for $45...!!!

 

thanks guys, and chor!zo i live about an hour and a half from LA. don't really feel like driving to LA for a cat lol.
yeah my uncles got a smog shop here so he wont be looking to see if its the right cat.
he just wont do a crookd smog because his partner works with state referee and crap.