removing catalytic converter - S-10 Forum
S-10 Forum is the resource on GM S-series trucks, Suspension, engine information, Body Modifications, painting tutorials.  Modifications to suit every need, budget and whim

removing catalytic converter

Go Back   S-10 Forum > Engine and Drivetrain Tech > Exhaust
New User? Register Forgot Password


 
LinkBack Thread Tools
Old 04-28-2005, 01:06 AM   #1
Not Me Just The Truck
 
hercamer's Avatar
 
Age: 31
Join Date: Apr 2003
Posts: 66
Location: Carthage, MO
User is: OffLine
removing catalytic converter

How hard is it to take out the cat? Do you just have to cut it out and weld a piece of pipe where it use to be? Its a 97 2.2L. Will it screw with my gas milage because of the exahust sensor?
Old 04-28-2005, 02:38 AM   #2
DRIVIN A PERVERTABLE
 
Deviant Mini's Avatar
 
Age: 40
Join Date: Mar 2003
Posts: 7,017
Location: KANEOHE, HAWAI'I
User is: OffLine
Re: removing catalytic converter

cut and weld. it may mess w/ your comp if you have the o2 sensor behind the cat. also it is illegal to remove it in most states. inspection purposes and all. why not just get a high flow cat?
Old 04-28-2005, 03:37 AM   #3
Not Me Just The Truck
 
hercamer's Avatar
 
Age: 31
Join Date: Apr 2003
Posts: 66
Location: Carthage, MO
User is: OffLine
Re: removing catalytic converter

actually thats what I have now, tryin to get my flames on my flamethrower bigger *LOL*
Old 04-28-2005, 01:41 PM   #4
-Insert Title Here-
 
Age: 28
Join Date: Oct 2004
Posts: 179
Location:
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by Deviant Mini
also it is illegal to remove it in most states. inspection purposes and all.
it is illegal in every state, some states may not check your vehicle to see if its there, but it is still illegal.
Old 04-28-2005, 01:52 PM   #5
Molon Labe
 
BudRacing's Avatar
 
Age: 27
Join Date: Aug 2004
Posts: 5,295
Location: Decatur, Ga
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by twest17
it is illegal in every state, some states may not check your vehicle to see if its there, but it is still illegal.
Once you get outside the Atlanta metro area in Georgia, there are no emissions tests.
Old 04-28-2005, 01:56 PM   #6
child at heart
 
gregoneck's Avatar
 
Age: 40
Join Date: Feb 2005
Posts: 1,546
Location: DFW
User is: OffLine
Re: removing catalytic converter

you will NOT gain anything by removing it.
Old 04-28-2005, 03:37 PM   #7
DRIVIN A PERVERTABLE
 
Deviant Mini's Avatar
 
Age: 40
Join Date: Mar 2003
Posts: 7,017
Location: KANEOHE, HAWAI'I
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by twest17
it is illegal in every state, some states may not check your vehicle to see if its there, but it is still illegal.
true but not all places(counties) check all points like they are required to do. there are so many ways around the tests. i had a yearly inspection sticker and the emissions test papers for 5 years and never even saw the inspection station. but that all changed just recent. lost my connect but truck still passes legally although they got pissed for having to crawl underneath to reach my dumps.
Old 04-28-2005, 05:28 PM   #8
no more S10
 
NCarolina910's Avatar
 
Age: 27
Join Date: Jul 2003
Posts: 17,422
Location: North Carolina
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by gregoneck
you will NOT gain anything by removing it.
Removing your cat is NOT a good idea on a 2.2. Your truck is gonna sound like shit and like gregoneck said you won't gain a thing. My friend cut his off when it blew out (because he had to) and just put in a piece of pipe for temporary and it sounds like a dying tractor. Just don't do it.
Old 04-28-2005, 05:34 PM   #9
SOLD
 
MX_Racer32's Avatar
 
Age: 30
Join Date: Aug 2003
Posts: 7,551
Location: Charlotte
User is: OffLine
Re: removing catalytic converter

Quote:
you will NOT gain anything by removing i
not true, you gain some backfire and crappy sounding exhuast!!! lol my cat has been gone since i bought my truck, no power gains but it was hollowed out when i bought the truck. if you stick any kind of muffler on it though, you wont be able to tell a noise (or performance)diff.

me and my bud have the same exact exhaust on his 94 2.2l and my 95 2.2 except i have a hollowed cat, no performace or sound dif. between the two.
Old 05-02-2005, 11:09 AM   #10
Soon To Be Pimp
 
slammed94noma's Avatar
 
Age: 27
Join Date: Jan 2005
Posts: 347
Location: Ashland
User is: OffLine
Re: removing catalytic converter

isnt it louder if i have no cats and get glasspacks and y pipes on my 4.3
Old 05-02-2005, 04:53 PM   #11
Not Me Just The Truck
 
hercamer's Avatar
 
Age: 31
Join Date: Apr 2003
Posts: 66
Location: Carthage, MO
User is: OffLine
Re: removing catalytic converter

I am running a glass pack now, so what would it sound like without the cat?
Old 05-02-2005, 06:56 PM   #12
SOLD
 
MX_Racer32's Avatar
 
Age: 30
Join Date: Aug 2003
Posts: 7,551
Location: Charlotte
User is: OffLine
Re: removing catalytic converter

same as it would without.
Old 05-02-2005, 07:50 PM   #13
www.myspace.com/MINTSICK
 
jmwxtreme43's Avatar
 
Age: 29
Join Date: Oct 2003
Posts: 4,532
Location: Kingston, NH
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by MX_Racer32
same as it would without.
not at all, biggest difference in sound from my exhaust was the deletion of the cat, probably the best mod i ever did too mainly for the sound, obviously it does do a LITTLE, considering mine is just a piece of pipe now and not honeycombed mesh restrictive shit
Old 05-02-2005, 09:13 PM   #14
SOLD
 
MX_Racer32's Avatar
 
Age: 30
Join Date: Aug 2003
Posts: 7,551
Location: Charlotte
User is: OffLine
Re: removing catalytic converter

4.3 or 2.2?
Old 05-31-2005, 07:59 PM   #15
Registered User
 
dbo98's Avatar
 
Age: 43
Join Date: May 2005
Posts: 27
Location: upstate sc
User is: OffLine
Re: removing catalytic converter

what about 98 and up? has anyone heard of remving the cat doing any damage to the vehicle? i.e. the computer.
Old 05-31-2005, 08:50 PM   #16
Registered User
 
kingkaspr's Avatar
 
Age: 34
Join Date: May 2005
Posts: 1,052
Location: frederick md
User is: OffLine
Re: removing catalytic converter

nope i removed mine and i have no problems. i did get a lil better sound out of my gibson cat back. but as far as tryin to get more flame from ur flamethrower it aint goin to happen by takin the cat out. only way i have heard to get a bigger flame out of a fuel injected engine was to run a propane tank.
Old 05-31-2005, 09:01 PM   #17
Registered User
 
dbo98's Avatar
 
Age: 43
Join Date: May 2005
Posts: 27
Location: upstate sc
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by kingkaspr
nope i removed mine and i have no problems. i did get a lil better sound out of my gibson cat back. but as far as tryin to get more flame from ur flamethrower it aint goin to happen by takin the cat out. only way i have heard to get a bigger flame out of a fuel injected engine was to run a propane tank.
did you have to add a O2 simulator?, today is the first time i even heard of em. and what about no cat making the SES light come on
Old 02-18-2008, 09:09 PM   #18
Registered User
 
Join Date: Feb 2008
Posts: 9
Location:
User is: OffLine
Re: removing catalytic converter

i have a 97 s10 and its a 2.2l and i took off my cat off and ran a pipe with the sencer and it runs like shit it ****s up the computer and doesnt sound to hot just run a high flow cat
Old 02-18-2008, 09:19 PM   #19
Molon Labe
 
BudRacing's Avatar
 
Age: 27
Join Date: Aug 2004
Posts: 5,295
Location: Decatur, Ga
User is: OffLine
Re: removing catalytic converter

^^If you hadn't noticed, this thread is about 3 years old.
Old 12-14-2008, 12:44 PM   #20
Registered User
 
Join Date: Dec 2008
Posts: 14
Location:
User is: OffLine
Re: removing catalytic converter

I have been reading the posts and while more power would be nice (I drove through the mts with a harley in the back of the truck, 3rd gear a few times) I am interested in fuel mileage. I drive a mixture of city and highway and get 22/23. I drove to wis with the bike in the truck and got 23.7 mpg at 70/80 mph.
I am looking to increase the fuel mileage and I am considering removing the cat, no testing here.

I have been exp with driving styles, shifting rpm etc and 23 is about what I can do so far. The truck has the 2.2 with a 5sp, its a base model xcab with 70k miles. I was driving a f150 getting 22 highway so I am not gaining anything with the smaller truck it seems.

Thoughts? I am looking for factual mpg numbers either way.

Need a deal? www.dealsniffer.net
Old 12-14-2008, 01:34 PM   #21
Molon Labe
 
BudRacing's Avatar
 
Age: 27
Join Date: Aug 2004
Posts: 5,295
Location: Decatur, Ga
User is: OffLine
Re: removing catalytic converter

Underdrive pulleys and electric fan would be my first mod. Cat removal would be the last thing I tried.
Old 12-19-2008, 08:57 AM   #22
Registered User
 
Age: 22
Join Date: Dec 2008
Posts: 9
Location:
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by hercamer
How hard is it to take out the cat? Do you just have to cut it out and weld a piece of pipe where it use to be? Its a 97 2.2L. Will it screw with my gas milage because of the exahust sensor?
its not legal and it will screw weidur gas milage
Old 12-19-2008, 09:27 PM   #23
Registered User
 
Mattpyle's Avatar
 
Join Date: Oct 2008
Posts: 877
Location: Lacey, Wa.
User is: OffLine
Re: removing catalytic converter

Quote: Originally Posted by John Reardon
its not legal and it will screw weidur gas milage


It won't screw with the fuel mileage too much if you make/put on an o2 sensor simulator. It most likely won't be noticable at all.
Old 12-19-2008, 09:30 PM   #24
THE SDIME98
 
stepasyd's Avatar
 
Age: 28
Join Date: Feb 2003
Posts: 51,318
Location: North Carolina
User is: OffLine
Re: removing catalytic converter

thread is way old..but damn OP's avatar = worst ever.
Old 12-20-2008, 05:41 PM   #25
BelowMe
 
Render78's Avatar
 
Age: 24
Join Date: Nov 2008
Posts: 521
Location: Sumter, SC
User is: OffLine
Re: removing catalytic converter

Sponsored Links
Advertisement
 

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 01:30 AM.

Powered by vBulletin® Copyright ©2000 - 2011, Jelsoft Enterprises Ltd. SEO by vBSEO 3.2.0
SEO by vBSEO
vBulletin Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.