Gutting the cat

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Jul 13, 2016 | 06:16 AM

#11

B serious

Joined: Nov 2007

Posts: 8,841

Likes: 1,705

From: Illnoise. WAY downtown, jerky.

Is this really just an issue for certain years of S2000? My 16 year old (81K mile) cat is fine....track use and all. But it seems a few people have had the same broken cat issue.

Jul 13, 2016 | 10:22 AM

#12

tkeyyy

Joined: Oct 2008

Posts: 6,765

Likes: 2

From: Bay Area, California

Quote:

Originally Posted by B serious

Is this really just an issue for certain years of S2000? My 16 year old (81K mile) cat is fine....track use and all. But it seems a few people have had the same broken cat issue.

the honeycomb inside my original cat starting wiggling around in my cat at about 66k. MY01.

Jul 14, 2016 | 06:36 AM

#13

92gli

Joined: Feb 2013

Posts: 357

Likes: 17

From: West Chester, PA

Quote:

Originally Posted by tkeyyy

Quote:

Originally Posted by Billman250' timestamp='1468246808' post='24013676

A defouler will 100% keep the o2 sensor from being sheared off, and it will also HELP the CEL to stay off (it will prevent code P0420 from creeping up should the cat ever become inefficient)

Adding a defouler to any S2000 with a stock cat is valuable insurance.

On the same token, if you gut the cat, use the defouler to keep the CEL off.

so you're saying that you can use a defouler with an oem cat (non-gutted) and it won't throw a cel? would there be enough airflow/readings?

I had to stack two of them together to stop the cel. All good for about 2,000 miles now. My cat was aftermarket. The insides broke apart very easily when I gutted it.

Oct 1, 2017 | 12:13 PM

#14

darcyw

Joined: Aug 2010

Posts: 4,378

Likes: 444

From: um, a house

ok…this thread is back from the dead…but, I want to be sure that the defouler goes into the cat.

I just picked up a vibrant o2 spacer/defouler.

thanks…like a zombie

darcy