Spoke to Courtesy today. My Manifolds are labelled 14002 a14004 as seen with heat shield off.
What I came up with, from Mitch and Cody at Courtesy, is that I need the manifold/cat assembley superceded with :
PN 208A0-WD22004 and
They sell them for $515 retail is $821 ea! Woof!
We caught the local dealer today and they say they can do them for $314 nad $282. That is manifold w Cat and install stuff. I hope this is the correct stuff. I will replace my O2 Sensors as well.
I have seen on a bunch of sites manifolds available for less than $100 but didn't know what to do about o2 readings and Marylad emmissions. If the computer could be fooled I can use less expensive manifolds, retain O2 sensors and register this in a Non Emmissions state.
so courtesy parts said either get the manifold and cat seperately and pay big bucks thru the nose? or you can get the manifold and cats as one piece for under 140.00 each?
thats what i am seeing. sure i could replace the manifolds with ones for bolt on cats but thats way more expensive to do now and any other time that the cat may need to be replaced.(515/821$)
getting the primary cat out is gonna take just about as much work as to replace the manifold anyways. alittle care and a lot of soak time with some good penetrating spray and your manifold bolts should come right out.
if your looking to trick your CEL lite off then you need to space out your O2 sensors. Your cats are still bad if you are getting P0430/p0420 codes.
be less concerned about your sensors and more concerned about your cats.
cats clean the O2 from the exhaust stream with activated type carbon interior. as this gets full and saturated, more O2 gets thru and that is what your sensor sees. that in turn causes changes to be made to the computer and the engine light to come on.
all i was able to do was to get my light to turn off on its own so i could get a sticker and later when its warmer, i can work on the exhaust. right now i am pricing things out and waying my options.
also if you have found anything as cheap as what i have seen, then please send a link. also check those courtesy guys again. not sure they being totally accurate. from what i see on the web site and that page your 2003 v6 parts are the cheap ones. all the other parts listed are for different years and models.
headers arent a bad idea with straight pipes. there is someone here that has done it but they certainly arent plug and play. probably better to learn how to weld and get non cat manifolds and make rest of exhaust. of course you still need to space out your O2 sensors.
$5 o2 cheater/non fouler how-to - evolutionm.net
this is a link that i kinda followed. although i changed things slightly.
here is something i just found.
Scion tC Anti-Fouler
although i cant see if its 18mm or not.
there is another right angle one that i have seen but i cant find the link
i know these are for different cars , but the main point is to move your o2 sensor out of the exhaust stream. the sensor itself is 1/2 inch in diameter and the threads are 18mm.