1997 Land Rover Defender 90 Catalytic Converter 4.0L - Defender Source
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  #1  
Old April 4th, 2012, 07:29 AM
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1997 Land Rover Defender 90 Catalytic Converter 4.0L

Hey guys. I think my D90 search is finally coming to a close. The truck is great but needs a Catalytic Converter. I live in NYC 10011, this is a big job, Land Rover charges 4100, my mechanic 2000 both using OEM parts.

Question:

Is there anyway to get this repair in an affordable fashion? Do you need genuine parts, typically aftermarket is better for this type of repair or am I mistaking myself? Engine light I was told is on because of this.

If you have a 1997 NAS truck and have recently been faced with this repair please reply to this thread.

Thanks guys, I'm looking forward to posting as an owner and not a crazed spectator.

Ronnie
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  #2  
Old April 4th, 2012, 07:35 AM
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If you do a quick search here you should be able to find the aftermarket part numbers. Many use Magnaflow. No need to use LR cats. You should do both sides at the same time. Parts plus labor at a decent muffler shop should come in under $500 - they will weld the new cats into your existing y-pipe assuming it is still in good shape. Preparing to do the same myself. Good luck.
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  #3  
Old April 4th, 2012, 08:04 AM
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Search magnaflow on here - I think I got mine from Amazon. Magnaflow 94004 or something like that. I just did this a few months ago when my new Borla exhaust arrived I also bought a new set of oxygen sensors, cats, and brought them out to Vasquez Muffler on Jerome Ave out in the Bronx. They charged me $200 cash for an hour and a half of work to cut out the old cats, uninstall the muffler and old Borla and then install/weld all the new stuff (no new Y pipe).
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  #4  
Old April 4th, 2012, 10:52 AM
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Have others installed the Magnaflow 94004 on a 97 with success?
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  #5  
Old April 4th, 2012, 11:03 AM
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Why wouldn't it be successful?
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  #6  
Old April 4th, 2012, 11:29 AM
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I guess I was questioning whether there was a difference in fitment between the 3.9 and the 4.0.
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  #7  
Old April 4th, 2012, 11:38 AM
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No issue. The Y-pipes in the '97 are shaped differently, but the diameter of the pipe and the fitment of these cats is the same, with the 2 inch inlet and outlet diameter. In the '97 you also have 4 o2 oxygen sensors instead of 2 in all of the other years.

http://www.roverparts.com/Parts/ESR4106.cfm

vs.

http://www.roverparts.com/Parts/ESR3063.cfm
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  #8  
Old April 4th, 2012, 12:00 PM
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My friend runs an exhaust shop (land rover guy too, has a 96 disco and a 83 110). He charges $500 to do this, with magnaflows and after market cats. He's installed this a couple 90's with zero issues. You should be able find a shop to do the work in that price range.
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  #9  
Old April 4th, 2012, 12:08 PM
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Here is a pic of the factory y-pipe and cats on the left and a pair of Magnaflows spliced into a factory y-pipe on the right. The magnaflows cats will change the sound of your exhaust (for the better IMO).
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  #10  
Old April 4th, 2012, 01:15 PM
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http://www.roverparts.com/Parts/ESR4106.cfm

$549 + two hours of labor tops. Add $400 if you want 4 new O2 sensors. You probably don't need them. My view is the new Y-pipe is a better option than welding in cats.
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  #11  
Old December 7th, 2012, 02:46 PM
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Trying to decide between the AB Y-pipe and the Magnaflow Y-pipe. My old Y-pipe is shot, so I need a complete replacement. It will be attached to a Borla Cat-Back btw....
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  #12  
Old December 7th, 2012, 03:41 PM
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rock auto has one for $417 if you are trying to save a couple $$$ but I like that the AB one looks exactly like the genuine one.
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  #13  
Old December 7th, 2012, 05:05 PM
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Quote:
Originally Posted by evilfij View Post
rock auto has one for $417 if you are trying to save a couple $$$ but I like that the AB one looks exactly like the genuine one.
Thanks. I've read in another thread that fitting the Magnaflow Y-Pipe was a pain, but I like that it is supposedly SS. If the AB follows factory lines, it is probably my best bet to prevent any leaks and broken knuckles mating it to the manifolds and the Borla.
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  #14  
Old December 7th, 2012, 07:50 PM
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Quote:
Originally Posted by rd10014 View Post
Hey guys. I think my D90 search is finally coming to a close. The truck is great but needs a Catalytic Converter. I live in NYC 10011, this is a big job, Land Rover charges 4100, my mechanic 2000 both using OEM parts.

Question:

Is there anyway to get this repair in an affordable fashion? Do you need genuine parts, typically aftermarket is better for this type of repair or am I mistaking myself? Engine light I was told is on because of this.

If you have a 1997 NAS truck and have recently been faced with this repair please reply to this thread.

Thanks guys, I'm looking forward to posting as an owner and not a crazed spectator.

Ronnie

how do you know you need a new one?
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  #15  
Old September 6th, 2016, 09:45 AM
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I have a rattling noise coming from the passenger side Cat and thinking about what direction to go:

1) Should I just replace the whole Y pipe and Cats?

2) or get the MagnaFlow Cats and have to have them welded in?

I have the OEM Y pipe that is 22yrs old I am leaning toward getting the Y pipe and Cats.

I have done the searches and read all the threads I could find.

Any thoughts/suggestions would be appreciated - thanks

some info I found:

AB Cats & Y pipe
http://www.roverparts.com/Parts/ESR3063

MagnaFlow Cap 94004 2 Inlet Diameter
https://www.summitracing.com/parts/mpe-94004

Old Cat install write up
http://www.defendersource.com/prod/cats.html



.
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  #16  
Old September 6th, 2016, 10:46 AM
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Have your local shop or muffler shop install a high-flow cat... Or weld it in yourself, get it from Summit or Amazon.
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  #17  
Old September 6th, 2016, 11:20 AM
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Quote:
Originally Posted by evilfij View Post
Land Rover Catalytic Converter (Part # ESR4106) For Defender 90 & Discovery I Vehicles

$549 + two hours of labor tops. Add $400 if you want 4 new O2 sensors. You probably don't need them. My view is the new Y-pipe is a better option than welding in cats.


I just did this for my Classic........$550ish to my door in two days.


It's all bolt on.


Seems like a no brainer if you are staring down a multi thousand dollar charge.
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  #18  
Old September 6th, 2016, 02:51 PM
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Quote:
Originally Posted by Contractor View Post
I just did this for my Classic........$550ish to my door in two days.


It's all bolt on.


Seems like a no brainer if you are staring down a multi thousand dollar charge.


Thank you for the helpful feedback - that's the way I was leaning but just wanted to see the thoughts from others.


Thanks again




.
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  #19  
Old September 6th, 2016, 03:41 PM
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Quote:
Originally Posted by Rufus View Post
Thank you for the helpful feedback - that's the way I was leaning but just wanted to see the thoughts from others.


Thanks again




.



Order the manifold to pipe gasket from them as well (2); the gaskets included with the Y-Pipes are crappy cork. The gaskets that come separate for the same application are the nicer metal ones.


Crazy that the Pipe kit comes with the shitty gasket, but it does.
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  #20  
Old September 6th, 2016, 03:45 PM
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Quote:
Originally Posted by Contractor View Post
Order the manifold to pipe gasket from them as well (2); the gaskets included with the Y-Pipes are crappy cork. The gaskets that come separate for the same application are the nicer metal ones.


Crazy that the Pipe kit comes with the shitty gasket, but it does.




Thanks - Good Call - I plan on ordering separate gaskets and two new O2 censors. And hopefully be good to go




.
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