| Author | Message | ||||||
     Garrett (Rover7592) Senior Member Username: Rover7592 Post Number: 352 Registered: 03-2003 |
After a few weeks of having the cats rattling i finally decided to go do something about it. Went to one muffler shop, they told me I would have to go to land rover for a new cat which i was quoted at $1,350.00. On my way out to the rover dealership i stopped by another shop and they put my disco on the high lift, and checked it out from underneath. To my suprise the cats had not gone bad, the exhaust pipe was about 1/20 of an inch away from my frame. Cost me $10.00 to have the exhaust pipe modified and pulled away from the frame. Just thought i'd let everyone know that there cats may sound bad, but there is also a chance it is not the cats. | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 347 Registered: 08-2002 |
If they go bad have a muffler shop put a catco converter on $150 installed. | ||||||
| Regis Dean (Bentvictor) New Member Username: Bentvictor Post Number: 3 Registered: 12-2003 |
I am fascinated by the second post. I believed that I had a bad cat and went to the dealership. They confirmed the cat was bad and the service gentleman was kind enough to suggest that I go to a muffler shop and save big money. When I went to three shops, they insisted that, because I needed a cat, and that there was a small hole in my muffler, I would need the dealer kit and it would run $1300-$1500. I guess I need to know EXACTLY what to request in order to avoid spending the big $$ to have the entire system replaced. I have a '97 Disco and if I must swallow the bullet, I must. I guess it is not unreasonable to have to sepend that money on a 98K mile vehicle, but the posts indicate that there is a less expensive option... | ||||||
| Chris Browne (Chris_browne) Senior Member Username: Chris_browne Post Number: 501 Registered: 02-2003 |
If I really wanted to spend that $1300 on an exhaust system inc cats, I'd go the NRP route..At 130+ k, original cats, on second tail pipe...which is 70k old now.... | ||||||
| Tbow (Tbow) Member Username: Tbow Post Number: 159 Registered: 12-2002 |
You can replace the Cats two different ways. On the 97 you need the OBDII compliant cats which will run around 200 - 250 each installed. You have two cats. OR You can get a remanufactured "direct fit" cat for about 500 - 600 dollars. Let me know if you want more info on this. As far as the mufflers go, I would suggest just having a local muffler shop install a aftermarket Magnaflow or Flowmaster muffler and eliminate the resonator in the back. That should run you around 200 - 400 dollars. Hope this helps. | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 349 Registered: 08-2002 |
I have a 97. I will get the item # it is $150 installed. | ||||||
| Jesse Lessard (Jlessard) Member Username: Jlessard Post Number: 80 Registered: 10-2002 |
This post has some part #'s I book marked it since I need new cats too.. I would still like to know what you used charles. ../2/37625.html"#444444"> | charles pastrano (Charles) Senior Member Username: Charles Post Number: 350 Registered: 08-2002 |
Jesse I just left Jaimes muffler shop on W W White rd. Had to have my motor mounts changed. They said it is $150.00 installed. | ||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 962 Registered: 04-2003 |
LOL...been researching cats all morning. I've sifted through the hundreds of posts about cats in the archives, and I think I'll have to CB it and go with Summit Racing's CATCO OBDII compliant universal cats and have the local muffler guys cut & paste them in. Does anyone know exactly what part #s are needed for driver's side & passenger side cats? I have a 1996 Discovery. Thanks | ||||||
| Robbie Donaldson (Robbie) Senior Member Username: Robbie Post Number: 482 Registered: 02-2002 |
hey Blue, think it is Catco 6905, but don't quote my on that. actually, i have a 6905 that i bought for my truck when my cats went south over a year ago. never could find a shop willing to weld them in without it costing me over a grand, so just bought a new y-pipe from Nathan at discountrovers ($495) and bolted it in myself. anyway, still have the cat, though it is a little dirty from sitting around my garage the past year, if you want it, just pay shipping and it's your's. | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 966 Registered: 04-2003 |
thanks Robbie I just want to verify which universal catco cats I need - this is all due to emissions failure, so I have to do it right to renew my registration. If the 6905 will work, then I'll definitely take you up on your generous offer. the new Y from Nathan is sounding better & better all the time, though.... | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 351 Registered: 08-2002 |
My catco is the 6005. It is 14" by 2 1/4. Blue I dont think you will have a problem with the 6905. Robbie if Blue doesnt use it I could use it for the other side. | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 967 Registered: 04-2003 |
I'll measure out both driver & passenger cats and post again. Thanks for the info. | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 352 Registered: 08-2002 |
The original looks much bigger. The pipe should be the same. | ||||||
| John Roche (Jroc) Member Username: Jroc Post Number: 208 Registered: 08-2002 |
Perrone Ford wrote a nice article about this on his website http://www.spanishtrailrovers.com/Tech/Mods/Exhaust_Upgrade/exhaust_upgrade.html When I replaced the passenger side cat on my '95 Disco, I was ready to spend a fortune, and this bit of info really helped me out. The exact part number for my '95 Disco I can't recall, but I can tell you I ordered the wrong part number and the place I found to install it just cut off the uneeded tube coming from the cat and welded up the hole. No difference in sound other than it doesn't rattle any more. When I do my exhaust I'll replace both cats with catco universal fits, Magnaflow muffler, and go without the rear resonator. From what I've heard the Magnaflow mufflers are quiet enough that you wouldn't miss the rear resonator. I've heard people say the Flowmaster 40 series is also pretty quiet. I'm also toying with the idea running a dual exhaust straight from the twin cats. Why Land Rover went from two cats into that fucking y-pipe is beyond me. As far as the NRP they seem plenty nice just overpriced. If I were never going to take my truck off-road and risk damaging the exhaust it'd be easier to justify. Anyway, the most difficult part was finding a shop to cut and weld. Here in NY most shops just want to sell you the bolt on replacement. If anyone is having a hard time finding a place here in NY email and I'll gladly share the info. Hope this helped someone cuz I know it saved me a shitload of money. See, this is what I like about DWeb, real helpful info. People of like interests helping each other out. Just seems like alot of people love getting on here to fight with somebody. And god knows if they were face to face they'd be a WHOLE LOT less confrontational. I think they feel weak and helpless in life, and feel the need to come on here and bully people into thinking they're tough. Keyboard toughguys! LOL Anyway I digress, hope this helped someone out. Happy Holidays | ||||||
| Jesse Lessard (Jlessard) Member Username: Jlessard Post Number: 81 Registered: 10-2002 |
Charles, dose Jaimes muffler shop have the cats on hand or do I need to order them myself? I did lots and lots of archive searching last week, but most people refer to OBDI 95 disco's instead of OBDII 96+ (like mine). And I couldnt figure out exactly what would work.. I cant remeber what its like to not have my CE light on anymore  | ||||||
| Blake Monchilovich (Azblake) Member Username: Azblake Post Number: 96 Registered: 02-2003 |
Blue, I ordered 2 Catco replacements from Summit (~$65 ea.) and had the Mad Hatter in Mesa weld them in for $20 a side. I'll check the part number when I get home, but 6905 sounds familiar. Just match diameters and don't get the one with the extra tube off the side. | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 969 Registered: 04-2003 |
yes, don't forget that from 1996-on you need the OBDII setup. This is critical if you're dealing with the state emissions game. AZ is just about the same as CA when it comes to registration & emissions testing. | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 970 Registered: 04-2003 |
Thanks AZBlake | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 353 Registered: 08-2002 |
Yes. Cielo welding has them also. | ||||||
| Jay Reeves (Jay) New Member Username: Jay Post Number: 24 Registered: 10-2003 |
John Roche: loved your last part about "face to face" - you hit the nail right on the head, dude! Question: has anyone figured out a way to bypass/fool those GD oxygen sensors on both sides of the cats? Merry Christams and Happy New Year from Dixie, yall! | ||||||
| Brian O'Connor (Hooky) Member Username: Hooky Post Number: 55 Registered: 09-2003 |
../17/37625.html> Blue, try that tread. Has all the part numbers you'll need plus cost estimate... I drive a 96' as well. If I haven't missed my mark the CATCO units mentioned above are NOT OBDII, which would not be a good thing. I've put 2000 miles on my rig since the install and things are still working like a charm. I got a 15.5 mpg average to OH and back from SC for the Christmas mirgration, we drove the pig 75-85 MPH the whole way. On the stock exhaust I ended up with a 12.7 MPH average for the same trip this past summer... the Magnaflow cats are very close of the width of the stock units, B | ||||||
| Tbow (Tbow) Member Username: Tbow Post Number: 161 Registered: 12-2002 |
The CATCO 6000 series cats are not OBDII compliant and are only approved for 95 (OBDI) and older vehicles. 96 up you need OBDII compliant cats. Because the OBDII system has an O2 sensors to check cat effeciency, non-OBDII compliant cats might trigger the Check engine light. So becareful. If anyone needs one, I have both types of universal cats available. For Dweb members, OBDI cats are 45 dollars and OBDII cats are 150 dollars, plus shipping. See the big price difference? The cats I carry are Carsound which are made by Magnaflow. I also have CATCO's available, but I get a better deal from Magnaflow. Email me if your interested. | ||||||
| Ron Brown (Ron) Senior Member Username: Ron Post Number: 648 Registered: 04-2001 |
"this is all due to emissions failure" What did you fail on exactly? I highly doubt the cats were the primary cause unless you have crazy high miles or drove around with a misfire for a long time (though new cats will usually fix most things). Most common thing is bad breather hoses. Also often simply changing the oil and/or plugs/wires will be enough to pass, unless it has a miss . The ones I have seen go through pass with extremely low emmissions, even with high miles. Ron | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 999 Registered: 04-2003 |
1996, 103k miles, original stock O2 & cats, current milage about 12 per, no other issues except for a few drips here & there I failed simply because my check engine light was on. The emissions dolts wouldn't even hook up the OBDII scanner. So I took it to a (trusted) local import shop and he retrieved the codes and tested all the emissions components. Sure I can yank the CE bulb, but then emissions will scan, see codes, and I'll fail. I want to get this fixed up right. per the mechanic: -cats bad...left cat operating at 198 degrees, right cat at 202 degrees -O2 sensors "getting lazy but still operating within parameters" -engine running fine (always has as far as I can tell) Tbow, I'll probably be giving you a shout. Thanks for the info everyone. | ||||||
| Brian O'Connor (Hooky) Member Username: Hooky Post Number: 56 Registered: 09-2003 |
Blue, I used the magnaflow high flow cats... from Troyer, didn't pay anything close to 150 per... A little tid bit I learned was most of the "high flow" cat elements are all made from the same manufacture... Which makes sense, each company CATCO, Magnaflow, etc. just slaps a different shell around the element. So basically go with the brand you are comfortable with - and fits your wallet :-) The thread I popped in above has all the part numbers you need. The local shop here just patched them in. The passenger side took 50% of the time for the whole job, but the cats fit, my light is off, and I had LR Columbia run a diagnostic after the install to be sure everything was a-Okay. Passed with flying colors. Anyhow - I just wanted to reiterate/refresh, since it seems folks are really hung on the CATCO brand - that Magnaflow makes a cat that is both cheep, OBDII, and fits! Also - when I called Summit they were pretty clueless about what to use, what would fit, etc., which was a huge surprise for me. Again good luck B | ||||||
| Will Tillery (Will) Member Username: Will Post Number: 246 Registered: 11-2002 |
I ordered some straight y pipes with no cats last week from LRNA. Will let you guys know the results when they arrive. 300.00.. | ||||||
| Ron Brown (Ron) Senior Member Username: Ron Post Number: 655 Registered: 04-2001 |
What exactly code(s) did it throw? To get a cat inefficiency code on its own on a GEMS disco requires an act of congress (almost always a faulty O2 biproduct or misfire biproduct). Odds are you need a new O2 or two (preferably 4). Now, if you want to pass and your cats really are bad enough to throw a code (I doubt it), reset the CEL, and take the two rear o2s out and put them in fresh air and plug up the holes. It will not throw a code and you will pass if all they do is check the OBDII. Ron | ||||||
| Jack Quinlan (Jsq) Senior Member Username: Jsq Post Number: 514 Registered: 10-2002 |
Blue, Don't worry about this OBDII compliant crap. That's just an approval system. A cat is a cat and they do the same thing. The carsound and catco universals will NOT trip your CE. Ask me how I know. You may not be running around with the designated "approved" cat for your truck, but it WILL work. Here in Kalifornia, NO aftermarket cat is "approved" for land rovers, so everyone tries to get you to buy the entire factory exhaust for 1500 bucks. screw that. | ||||||
| Tbow (Tbow) Member Username: Tbow Post Number: 162 Registered: 12-2002 |
Magnaflow's high flow cats are only OBDI compliant and cost only about 70 dollars. The OBDII cats are not available in a high flow yet. Only the OBDII cats cost 150 dollars. Because all cats use the same honeycomb type elements, what makes a cat highflow is more design of the shell rather than the element. Are they higher flow, yes, are they worth the extra money, you decide. If you have a OBDII system, the rear O2 sensors measure the cats efficency which will tell you if you need new cats. If you don't replace them, the check engine light will keep coming on. Will a OBDI cat on a OBDII system trigger the check engine light? Majority (99%)of the time they won't but every so often they will. Here's a good site that might explain things better. http://www.car-sound.com/05converter.htm Blue, to simpifly things, your options are: 1) replace with a new OEM.. (Ouch) 2) Replace with a remanufactured OEM cat. (about 1/2 the price of new) 3) Replace with universal OBDII compliant Cats. (believe it or not, this option might be about the same price as option 2) 4) Replace with universal OBDI compliant cats. (Cheapest option of all. Although unlikely but you might run into emissions testing problem). Will it work? technically yes, legally no. I would also suspect the O2 sensor might be a problem as well. How did he check the O2 sensor to tell you it was lazy. | ||||||
| Blue (Blue) Dweb Lounge Member Username: Blue Post Number: 1021 Registered: 04-2003 |
Jack, while I'm no cat manufacturer, I do believe their is a diff in the internal materials between OBDI vs. OBDII cats. Namely additional material in OBDII cats to further scrub the airstream. Or so I hear. I do appreciate your input, though. Like I said before, I'm not out to cheat the system, just want to get it fixed right, so I don't really want to pull O2's and leave them hanging in the breeze. It's amazing how many muffler shops and cat vendors can't provide any info on OBDI vs. II and just say "better go to your dealer" when I ask. I'll try to find out what the exact codes were. Thanks again. | ||||||
| Robin Cooper (Cooper1) New Member Username: Cooper1 Post Number: 17 Registered: 12-2003 |
OK, im gonna jump in here. I have a 97' Disco and im pretty sure that my cats are going bad..so.. all i need to do is replace them with OBDII compliant cats from magnaflow or CATCO? Now, where do i order them from? thanks. | ||||||
| charles pastrano (Charles) Senior Member Username: Charles Post Number: 370 Registered: 08-2002 |
Go to an independent muffler shop. Ask them how much to cut and weld in new cats. Shouldnt be over $150 installed. | ||||||
| Brett A. Naquin (Bnaquin) New Member Username: Bnaquin Post Number: 28 Registered: 09-2003 |
I paid $150 for the cat, installation and a gasket. TTL included. Find a good independent muffler shop and they'll weld an new one on. |
