i wanted to let u guys knw i ordered stainless steel headers for my civic. thanx for helpin me choose... now i wanna knw... my header n cat r option racing n my cat-bak is spyder auto, (none off ebay) will i pass da smog test with dat?

 

anybody know?

 

if ur cat is really a cat and not a test pipe, it should..

 

but its an option racing cat n inside it looks straight hollow like a test pipe but da inside walls got some type of filter lookin thing idk, but i called option n dey said i will pass da smog test but i'm on here to make sure...

 

From ur description, it sounds like it's just a resonator. If you can look through the pipe from one end and see out the other, it's not a cat. Cats have a bunch of screen type filters in them which you can't see through. You will not pass emissions.

 

it looks like a resonator but it ain't. i bought it off andysautosport.com when i went on da cat listing, i went under option racing n found it there. i said da same bout da way it looked so i called andys n dey said its a cat, plus i called option.

 

plus 1 side has da 3 bolt on section dat bolts to da cat-bak, (which did with no problem) n da other has 2 with da inner edge bent inwards for da gasket on da downpipe. plus it had 2 bolts where da O2 sensors go but i got 1 n goes on da header.

 

This is a picture directly from andysautosport.com and of the Option Racing Hi Flow Cat.



The little picture on the top right hand corner is a shot looking into the cat. You can see there is a little screen looking thing inside. That is what cleans the exhaust allowing you to pass emissions. You cannot look through a catalytic converter.

Like I said before, if you do not see these screens in there and you can see straight through the pipe, you WILL fail emissions.

 

yeah dats exactly wat i saw... da one i first saw was i think da tradesonic one... post a pic of dat one pls so i can tell u somethin bout it...

 

This is the Tradesonic Hi-Flow Cat



I cannot be 100%, but that definitely looks like a resonator.

Does it look something like this inside?


If so, it is a resonator.