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-   -   Which cat? (https://www.gtcarz.com/chevy-gmc-70/cat-101430/)

paarman97maro 02-24-2006 10:53 PM

Which cat?
 
okay, well Im selling my cat, its up on ebay right now, but now that Im looking for a different one I honestly have no idea which one I need. Im looking at all the options, and I dont even know if I had the right one to begin with. Im seeing ones with air/no-air, 1 boss/dual boss then theres oval universals and short oval universal... I think I just need a universal with dual O2s dont I? or is it just 1.. I honestly cant remember right now. TIA.

archemedes 02-25-2006 02:00 AM

I think your right (if you needed the air you'd have a tube going down to yours now) most of the aftermarket ones are very similar. I have used dynomax ones with good luck (amazing as it sounds I don't mind their cats) basically stick to a name brand and you'll be fine, don't bother with the cheap off brands as they actually flow worse than stock

paarman97maro 02-25-2006 02:28 AM

I know Im getting a carsound for sure... Do I need 2 o2s or just 1? I think I need 2....?

99v6cam 02-25-2006 02:35 AM

You don't need any o2s on the cat. There are 2 sensors (one in each header down towards the collectors) and one POST cat sensor in the S-pipe of your exhaust.

paarman97maro 02-25-2006 02:36 AM

Theres no O2s on a stock cat?

99v6cam 02-25-2006 02:43 AM

nope

2000v6cam 02-25-2006 03:37 AM

i thought there was 1 O2 sensor on the cat but im not sure it might be a different type of sensor

99v6cam 02-25-2006 01:11 PM


Originally Posted by 2000v6cam
i thought there was 1 O2 sensor on the cat but im not sure it might be a different type of sensor

Nope, no sensors in the cat, one after the cat.

2000v6cam 02-26-2006 02:41 AM

o i guess im wrong but thats what i thought i saw but off the subject i was always thinking about getting those black halo lights for my car and now that i actually see them on a car i really like them im pretty sure im gonna get them now

NoRiceInside 02-26-2006 03:16 AM


Originally Posted by 99v6cam
You don't need any o2s on the cat. There are 2 sensors (one in each header down towards the collectors) and one POST cat sensor in the S-pipe of your exhaust.

saved me a post :D

99v6cam 02-26-2006 09:10 PM


Originally Posted by 2000v6cam
o i guess im wrong but thats what i thought i saw but off the subject i was always thinking about getting those black halo lights for my car and now that i actually see them on a car i really like them im pretty sure im gonna get them now

Do it!

paarman97maro 02-27-2006 03:22 PM

If the S-pipe doesnt have an O2 bung, can I get a cat with a rear O2? Cant remember if mine does or not. Do I need this?


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