• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

What is the best way to weld cats into a O/R h pipe?

  • Thread starter Thread starter MineralgreyGT01
  • Start date Start date Mar 12, 2004

MineralgreyGT01

New Member
Jun 23, 2002
519
0
0
57
Normal, Illinois
Mar 12, 2004
#1
  • Mar 12, 2004
  • #1
I am going to weld some cats into my MRT H pipe and I was wondering what the best method for doing this is. Currently the pipe is off the car. I was thinking of scribing a line down the center of each pipe where the cats would go and also down the centerline of each cat, line up the scribes and weld. Any other thoughts?

I really dont want to put the pipe on the car to do this do to the effort required. And I dont have my mil 02 sensor extensions yet. But if that is the best way then so be it.
 

Sleepy1

Founding Member
Jun 10, 2002
807
0
0
Chicago, IL
Mar 12, 2004
#2
  • Mar 12, 2004
  • #2
What kind of welder are you going to use? TIG or MIG? I personally wouldn't weld...why did you get an off-road pipe to begin with? What are you going to cut the H-pipe with? A sawzall will probably work the best. Make sure you have a new blade in there...it should go through the pipe like a hot knife in butter.
 

MineralgreyGT01

New Member
Jun 23, 2002
519
0
0
57
Normal, Illinois
Mar 12, 2004
#3
  • Mar 12, 2004
  • #3
Sleepy1 said:
What kind of welder are you going to use? TIG or MIG? I personally wouldn't weld...why did you get an off-road pipe to begin with? What are you going to cut the H-pipe with? A sawzall will probably work the best. Make sure you have a new blade in there...it should go through the pipe like a hot knife in butter.
Click to expand...

I am going to have a weld shop do it with stainless steel rod. I got the O/R H originally because that is what I wanted at the time but I didn't like the 2000-3000 rpm 'Blat sound' that comes with them (didn't realize it at the time). I never got used to it so now it is sitting in my garage doing nothing. I am going to put it on my Mach 1 but I am going to tone it down a bit. They will probably use a sawzall or a band saw. I just want to give them good directions to keep the alignment proper.
 

Mike98GT

New Member
Feb 21, 2004
107
0
0
Temecula, CA
Mar 12, 2004
#4
  • Mar 12, 2004
  • #4
You really shouldnt use stainless steel welding rod with steel pipes. The two don't fuse together well. You said you can use it?
 

MineralgreyGT01

New Member
Jun 23, 2002
519
0
0
57
Normal, Illinois
Mar 12, 2004
#5
  • Mar 12, 2004
  • #5
Mike98GT said:
You really shouldnt use stainless steel welding rod with steel pipes. The two don't fuse together well. You said you can use it?
Click to expand...
Maybe I miss-spoke, whatever rod is reqeired to weld stainless steel together I figured if the pipes are stainless and the cats are stainless then the rod should be also?
 

Mike98GT

New Member
Feb 21, 2004
107
0
0
Temecula, CA
Mar 12, 2004
#6
  • Mar 12, 2004
  • #6
Oh ok. that's right then.
 

Dallasgt01

New Member
Dec 31, 2003
204
0
0
42
Dallas, Texas
Mar 12, 2004
#7
  • Mar 12, 2004
  • #7
DONT DO IT buy a O/R X instead sell the one u have now the X pipes dont crackle or nothing!!!!GET THE OFF ROAD X never put those sorry ARS cats back on not even high flow cats
 
You must log in or register to reply here.

Similar threads

M
2001 v6 heater return pipe leak question
  • mnky99
  • Nov 11, 2025
  • SN95 V6 Mustang Tech
Replies
1
Views
265
SN95 V6 Mustang Tech Nov 11, 2025
mnky99
M
Progress Thread Progress Thread- From6to8's 1994 Cobra Supercharger install
  • from6to8
  • Sep 25, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 20 21 22
Replies
420
Views
10K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
R
What's it Worth? 1997 Cobra, a ton of mods and restoration
  • riored97snake
  • Jun 18, 2026
  • What is it Worth?!?!?
Replies
2
Views
206
What is it Worth?!?!? Jun 21, 2026
riored97snake
R
0
V6 to V8 Swap info
  • 02_2v_Curtis
  • Jan 11, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
776
1996 - 2004 SN95 Mustang -General/Talk- Jan 11, 2026
02_2v_Curtis
0
M
Progress Thread mkk50's Progress Thread
  • mkk50
  • Aug 4, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
19
Views
798
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Sep 22, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?