GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

High Flow Cats

Thread Tools
 
Search this Thread
 
Old 07-05-12, 06:07 PM
  #1  
AM21GS400
Driver
Thread Starter
iTrader: (2)
 
AM21GS400's Avatar
 
Join Date: Feb 2012
Location: WI
Posts: 153
Likes: 0
Received 1 Like on 1 Post
Default High Flow Cats

One of my catalytic converters is broken, and has thrown a CEL light, its been like this for a few months now, and instead of buying an OEM catalytic converter I think I want to buy two highflow cats, are there any good ones that are specially made for the gs400 so I can just bolt them right on? instead of having to do a bunch of cutting and welding.

If you know of any let me know. thanks
The following users liked this post:
JDMfoLIFE (02-02-20)
Old 07-05-12, 06:39 PM
  #2  
bigwes
Lexus Test Driver
 
bigwes's Avatar
 
Join Date: Apr 2012
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

ive been trying to figure out that as well. i want to put a hi flow cat on my GS4.
The following users liked this post:
JDMfoLIFE (02-02-20)
Old 07-06-12, 08:57 AM
  #3  
djspawn00
Lexus Test Driver

 
djspawn00's Avatar
 
Join Date: Mar 2007
Location: New York
Posts: 1,170
Likes: 0
Received 1 Like on 1 Post
Default

I have no cats, i just used post cat o2 simulators.
Old 07-06-12, 11:56 AM
  #4  
ZippyGuy
Lexus Test Driver
iTrader: (9)
 
ZippyGuy's Avatar
 
Join Date: Oct 2005
Location: VA
Posts: 1,432
Likes: 0
Received 7 Likes on 5 Posts
Default

Originally Posted by AM21GS400
One of my catalytic converters is broken, and has thrown a CEL light, its been like this for a few months now, and instead of buying an OEM catalytic converter I think I want to buy two highflow cats, are there any good ones that are specially made for the gs400 so I can just bolt them right on? instead of having to do a bunch of cutting and welding.

If you know of any let me know. thanks
Magnaflow offers a direct fit high flow cat for the 2nd Gen GS. There is a vendor on the site that sells them https://www.clublexus.com/forums/clu...d-x-pipes.html

MagnaFlow Conv DF '00-'04 Lexus IS/GS300 mani
MagnaFlow Conv DF 00-04 Lexus GS300 50 State
MagnaFlow Conv DF 00-04 Lexus GS300 Rear

For more specifications go directly to the Magnaflow site: http://www.magnaflow.com/02catalytic...S300&year=2002
Old 07-06-12, 10:42 PM
  #5  
AM21GS400
Driver
Thread Starter
iTrader: (2)
 
AM21GS400's Avatar
 
Join Date: Feb 2012
Location: WI
Posts: 153
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by ZippyGuy
Magnaflow offers a direct fit high flow cat for the 2nd Gen GS. There is a vendor on the site that sells them https://www.clublexus.com/forums/clu...d-x-pipes.html

MagnaFlow Conv DF '00-'04 Lexus IS/GS300 mani
MagnaFlow Conv DF 00-04 Lexus GS300 50 State
MagnaFlow Conv DF 00-04 Lexus GS300 Rear

For more specifications go directly to the Magnaflow site: http://www.magnaflow.com/02catalytic...S300&year=2002
Yeah but I need mine for a gs400 not 300
Old 07-07-12, 05:47 AM
  #6  
ZippyGuy
Lexus Test Driver
iTrader: (9)
 
ZippyGuy's Avatar
 
Join Date: Oct 2005
Location: VA
Posts: 1,432
Likes: 0
Received 7 Likes on 5 Posts
Default

Originally Posted by AM21GS400
Yeah but I need mine for a gs400 not 300
Magnaflow offers products for the GS400 as well (http://www.magnaflow.com/02catalytic...S400&year=2000)

You might try searching a little. There are a lot of products out there.
Old 07-07-12, 07:49 PM
  #7  
bigwes
Lexus Test Driver
 
bigwes's Avatar
 
Join Date: Apr 2012
Location: TX
Posts: 1,135
Likes: 0
Received 1 Like on 1 Post
Default

can the magnaflow catalytic converter for the GS3 work for the GS4??
Old 07-07-12, 11:17 PM
  #8  
AM21GS400
Driver
Thread Starter
iTrader: (2)
 
AM21GS400's Avatar
 
Join Date: Feb 2012
Location: WI
Posts: 153
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by ZippyGuy
Magnaflow offers products for the GS400 as well (http://www.magnaflow.com/02catalytic...S400&year=2000)

You might try searching a little. There are a lot of products out there.
Lol if you click on your link it says right on the page.. "no products for Lexus gs400"
Old 11-29-15, 10:52 AM
  #9  
clintdaddy
Driver
 
clintdaddy's Avatar
 
Join Date: Feb 2015
Location: BC
Posts: 136
Received 1 Like on 1 Post
Default

Originally Posted by AM21GS400
Lol if you click on your link it says right on the page.. "no products for Lexus gs400"
Yeah the site doesn't list direct fit cats for the gs400
Old 12-01-15, 09:51 AM
  #10  
Tmurder
Driver School Candidate
 
Tmurder's Avatar
 
Join Date: Jun 2015
Location: Florida
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by djspawn00
I have no cats, i just used post cat o2 simulators.
Where did you get yours from? I'm looking to ditch my cats on a 2004 GS430 and having some trouble finding something that will work for certain.
Old 12-01-15, 09:49 PM
  #11  
GSTim
Rookie
iTrader: (1)
 
GSTim's Avatar
 
Join Date: Aug 2012
Location: NV
Posts: 90
Likes: 0
Received 0 Likes on 0 Posts
Default

I got 1 bolt on cat from rockauto.com no complaints. Mack sure its a bolt on before you buy.
Old 02-01-20, 04:51 AM
  #12  
98lexi
Driver School Candidate
 
98lexi's Avatar
 
Join Date: Feb 2020
Location: North carolina
Posts: 10
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by bigwes
can the magnaflow catalytic converter for the GS3 work for the GS4??
I'm actually very interested in what is shared between the GS3 and the GS4 but I dont think cats would be interchangeable seeing how the GS3 is a 6 cylinder and the GS4 is a V8
Old 02-01-20, 07:25 AM
  #13  
firelizard
Moderator
iTrader: (1)
 
firelizard's Avatar
 
Join Date: Sep 2012
Location: Canada
Posts: 2,057
Received 441 Likes on 350 Posts
Default

They are not interchangeable.
The following users liked this post:
JDMfoLIFE (02-02-20)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vioswhite
LS - 1st and 2nd Gen (1990-2000)
13
03-08-13 06:04 AM
snowfox444
Performance & Maintenance
7
12-13-10 11:24 AM
lexasss
RX - 1st Gen (1999-2003)
2
08-16-06 03:45 PM
nicola
Performance
9
03-03-06 04:58 AM
nysupraman
Performance & Maintenance
7
06-29-05 01:12 AM



Quick Reply: High Flow Cats



All times are GMT -7. The time now is 12:32 PM.