catalytic converter removal
Thread Starter
Instructor
Joined: Jul 2008
Posts: 160
Likes: 0
From: Flora Illinois
catalytic converter removal
Hey fellas. Just had a couple of questions.
When I get around to buying a set of headers and tubes to go with (catless), can I go ahead and order a tuner and SELF tune-out o2 sensors or is this not recommended?
I know guys have cut their cats out before..but how did they eliminate o2 sensor errors?
My closest tuner is about a 3 hour drive..this is why I'm asking about buying a tuner for myself. I know the EFI Live are expensive, but I was leaning toward it.
When I get around to buying a set of headers and tubes to go with (catless), can I go ahead and order a tuner and SELF tune-out o2 sensors or is this not recommended?
I know guys have cut their cats out before..but how did they eliminate o2 sensor errors?
My closest tuner is about a 3 hour drive..this is why I'm asking about buying a tuner for myself. I know the EFI Live are expensive, but I was leaning toward it.
Melting Slicks
Joined: Aug 2006
Posts: 3,123
Likes: 116
From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
When you install the headers I think you're going to want to do a lot more than just tune out the rear 02 sensors. With headers, full tune, and CAI, you're looking at approximately 35 rwhp. Without the tune I think you'll find there's a lot left on the table.
Just curious why you're taking the cats out? I think you'll find there's not enough of a performance difference and the stink of the fuel is going to be almost nauseating.
Just curious why you're taking the cats out? I think you'll find there's not enough of a performance difference and the stink of the fuel is going to be almost nauseating.
Thread Starter
Instructor
Joined: Jul 2008
Posts: 160
Likes: 0
From: Flora Illinois
When you install the headers I think you're going to want to do a lot more than just tune out the rear 02 sensors. With headers, full tune, and CAI, you're looking at approximately 35 rwhp. Without the tune I think you'll find there's a lot left on the table.
Just curious why you're taking the cats out? I think you'll find there's not enough of a performance difference and the stink of the fuel is going to be almost nauseating.
Just curious why you're taking the cats out? I think you'll find there's not enough of a performance difference and the stink of the fuel is going to be almost nauseating.
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
I gutted my cats (with Long Tube Headers) fior the same reason.. Big mistake... While it's MARGINALLY louder.. it stinks like Scheit... not like the old school leaded gas smell.. Hydrocarbon, Eye Burining, permeating your clothes smell
GEts worse in the summer driving with the top down and I pull up to a light.. Not a tree hugger in the least.. But I wish I had my cats back.. No real HP gain and slightly louder..
If you want louder.. Get electric cutouts or a better exhaust..
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
WOW! Catless you give you 3-7 HP!
It will also give you 10 times the smell. Yea,,,, your young and viral and that 60's hot rod smell wont bother you!
Ive seen countless post where C5 and C6 forum members are buying CATs to reinstall to get rid of the "SMELL"
If you cant stand to have GM OEM CATs,, at least install some Random Technologies High Flow cats. I'm making 450 RWHP through Random Tech Cats!
It will also give you 10 times the smell. Yea,,,, your young and viral and that 60's hot rod smell wont bother you!
Ive seen countless post where C5 and C6 forum members are buying CATs to reinstall to get rid of the "SMELL"
If you cant stand to have GM OEM CATs,, at least install some Random Technologies High Flow cats.
I'm making 450 RWHP through Random Tech Cats!
Thread Starter
Instructor
Joined: Jul 2008
Posts: 160
Likes: 0
From: Flora Illinois
I gutted my cats (with Long Tube Headers) fior the same reason.. Big mistake... While it's MARGINALLY louder.. it stinks like Scheit... not like the old school leaded gas smell.. Hydrocarbon, Eye Burining, permeating your clothes smell GEts worse in the summer driving with the top down and I pull up to a light..
Not a tree hugger in the least.. But I wish I had my cats back.. No real HP gain and slightly louder..
If you want louder.. Get electric cutouts or a better exhaust..
GEts worse in the summer driving with the top down and I pull up to a light.. Not a tree hugger in the least.. But I wish I had my cats back.. No real HP gain and slightly louder..
If you want louder.. Get electric cutouts or a better exhaust..
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I gutted my cats (with Long Tube Headers) fior the same reason.. Big mistake... While it's MARGINALLY louder.. it stinks like Scheit... not like the old school leaded gas smell.. Hydrocarbon, Eye Burining, permeating your clothes smell GEts worse in the summer driving with the top down and I pull up to a light..
Not a tree hugger in the least.. But I wish I had my cats back.. No real HP gain and slightly louder..
If you want louder.. Get electric cutouts or a better exhaust..
GEts worse in the summer driving with the top down and I pull up to a light.. Not a tree hugger in the least.. But I wish I had my cats back.. No real HP gain and slightly louder..
If you want louder.. Get electric cutouts or a better exhaust..
Great mind think alike!!!!!
Tech Contributor
Joined: Jan 2007
Posts: 19,475
Likes: 1,171
From: Dyer, IN
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Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Don't count on it not getting louder. Even with hi-flow cats, LT headers will increase the volume, especially at WOT. And assuming you are getting a good set of headers, it should come with it's own X-pipe.
Melting Slicks
Joined: Aug 2006
Posts: 3,123
Likes: 116
From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
