Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

Removing Catalytic Converter

Thread Tools
 
Search this Thread
 
Old Aug 20, 2008 | 12:22 PM
  #1  
firebirdguy1180's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2008
Posts: 35
Likes: 0
From: NY
Car: 1985 Trans Am
Engine: Rebuilt 350
Transmission: Auto
Axle/Gears: 323
Removing Catalytic Converter

Speaking hypothetically if I were to remove my catalytic converter on my 85 firebird I know it wouldn’t be legal . But if I did would there be any negative effects on my car with the computer or any other problems ? The 02 sensor is located before the cat . Thanks
Old Aug 20, 2008 | 01:18 PM
  #2  
UNCLE TOM's Avatar
Supreme Member
iTrader: (1)
 
Joined: Dec 2006
Posts: 2,403
Likes: 4
From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Removing Catalytic Converter

no . it might even let it breath better .
Old Aug 21, 2008 | 05:20 AM
  #3  
Travis odell's Avatar
Member
 
Joined: Mar 2007
Posts: 183
Likes: 0
From: Tennessee
Car: 89 chevy camaro rs
Engine: Tbi 305
Transmission: 700r4
Axle/Gears: 3:73s
Re: Removing Catalytic Converter

Hypothetically speaking just do it.
Old Aug 22, 2008 | 01:15 AM
  #4  
Kevin91Z's Avatar
Moderator
25 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Removing Catalytic Converter

You could have hypothetically used the and read the other threads about this topic.

Then you'd find out its better and legal to replace your stock cat with a high performance aftermarket cat from Magnaflow, Catco, or Random Technology. That way you remain legal and dont give us hot rodders a bad name. You can even sell your stock cat to a metal recycling place and get money back for it.
Old Aug 22, 2008 | 01:30 AM
  #5  
firebirdguy1180's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2008
Posts: 35
Likes: 0
From: NY
Car: 1985 Trans Am
Engine: Rebuilt 350
Transmission: Auto
Axle/Gears: 323
Re: Removing Catalytic Converter

suck it dude
Old Aug 22, 2008 | 05:32 AM
  #6  
Travis odell's Avatar
Member
 
Joined: Mar 2007
Posts: 183
Likes: 0
From: Tennessee
Car: 89 chevy camaro rs
Engine: Tbi 305
Transmission: 700r4
Axle/Gears: 3:73s
Re: Removing Catalytic Converter

Originally Posted by firebirdguy1180
suck it dude
lol
Old Aug 22, 2008 | 11:21 PM
  #7  
mustangslayer86's Avatar
Member
 
Joined: Feb 2008
Posts: 151
Likes: 1
From: Denton, Maryland
Car: '88 GTA / '93 Z28
Engine: L98(350) / LT1 (350)
Transmission: 700R4 / 4L60E
Re: Removing Catalytic Converter

Speaking from a Camaro owner who has had all 4 possibilites of cat/cat delete options (Straight Pipe, Gutted Cat, Regular Cat, and High Flow Cat)... I'm happy with the high flow cat. A gutted cat sounds almost exactly the same. You'll notice the most power with a straight pipe, but it's really not even that much. If you go with a gutted cat or high flow cat you'll have a deep tone. If you go with the stock cat you'll have a hollow tone. and if you have the straight pipe you'll notice a fast medium tone.

It's been said that a 5 horsepower gain is added on a cat delete/cat gut, a 2 horsepower gain is done on a high flow cat.

You will not get any error codes from plugging your Smog Pump, Leaving it hang there, or bending it out of the way.

Hope this helps.

Last edited by mustangslayer86; Aug 22, 2008 at 11:24 PM.
Old Aug 22, 2008 | 11:52 PM
  #8  
IROCThe5.7L's Avatar
Moderator
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Re: Removing Catalytic Converter

Originally Posted by firebirdguy1180
suck it dude

Grow up. If you did a search in the first place you wouldn't even need to make this thread.


Originally Posted by Travis odell
lol
Great contribution to the thread. That post was 100% needed.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
ktthecarguy
Body
25
Jul 5, 2020 11:46 AM
Vintageracer
Camaros for Sale
12
Jan 10, 2020 05:33 PM
gta power
Exhaust
1
Aug 13, 2015 06:15 AM
3rdgenparts
Interior Parts for Sale
0
Aug 8, 2015 07:09 PM




All times are GMT -5. The time now is 08:17 PM.