Catalytic Converters

Reply Subscribe

Thread Tools

Search this Thread

Dec 27, 2006 | 12:10 PM

PewterMetallic98

Thread Starter

Burning Brakes

Joined: May 2003

Posts: 990

Likes: 0

From: Germantown TN

Catalytic Converters

How many does a 98 C5 have from the factory? 2 or 4? Thinking about running catless....

Dec 27, 2006 | 01:39 PM

AJay

Pro

Joined: May 2004

Posts: 551

Likes: 19

From: Morgantown WV

2 pup cats right after the exhaust manifold and 2 more upstream of the mufflers. = 4 Cats for you my friend.

If you install LT headers that will elim the pups. Going with high flow cats instead of eliminating the main cats will get you more RWHP without the stink of going catless.

Dec 27, 2006 | 01:44 PM

RdDragn2

Intermediate

Joined: Oct 2005

Posts: 35

Likes: 0

Another thing to consider is there will also be an increase in exhaust sound, which I don't know if you consider a good or a bad thing. But it should sound bad a$$.

Dec 27, 2006 | 01:55 PM

0C_Williams@RPM

Former Vendor

Joined: May 2005

Posts: 3,749

Likes: 4

From: Valencia Ca

Quote:

Originally Posted by ElectronBlueC3

How many does a 98 C5 have from the factory? 2 or 4? Thinking about running catless....

I think there are only two cats on all C5's until late 2000.

They are in the tunnel, approximately under the seats.

However, in my experiece, running catless will add negligable power and be smelly..