[gamefanatic]

Hello All,
I am about to replace my Catalytic Converter in my System. Just wondering if anyone has used anything other than the OEM if so what brand? I was hoping to use a High Flow model to get a little more performance.

Seems that the Ford Design is a little different than the average Cat?

I am running a 1997 GL with the stock U type Engine Vulcan 3.0L Engine.

Any suggestions?

 

[silvapain]

The cats are part of the Y-pipe. You will need to go to a muffler shop to have them replaced. I don't know if a muffler shop will weld on a cat that you supply, but you can ask before you buy the cats. Oh, and you have two cats.

 

[silvapain]

BTW, welcome to the TCCA!

 

[gamefanatic]

Thanks Silvapain,
I'm not worried about taking it to a Muffler shop I have access to the tools myself and not afraid to blow em up!

I was going to have someone who knows about cars help me to install it...

Just wanted to know what other people have used if anything? Can I use just a standard Highflow CAT like a Monza or do I have to get a special order deal? You say it uses 2 does that mean I need to get 2 Highflow CAT's? Sorry not real technical on how this system works it's fairly new to me...

TIA

Thee Gamefanatic

 

[mikehawk]

If you want to replace all of them, then yes, get two catalytic converters. While you're down there screwing with the y-ppie, you may want to replace your o2 sensors as well. There are 4 of them, 2 pre-cat sensors and 2 post-cat sensors. Two different part numbers, too. The front two are the most important o2's, they regulate the air/fuel mix for the car. The two post-cat o2's are only there to make sure your cats are still working.

 

[Blue Vulcan]

Strange....you only need to replace the two cats with one high-flow cat on other cars...

 

[mikehawk]

Originally posted by Blue Vulcan@Apr 12 2004, 09:06 PM
Strange....you only need to replace the two cats with one high-flow cat on other cars...

You'd have to do quite a bit of custom fabricating to make that work.

 

[Blue Vulcan]

Originally posted by mikehawk+Apr 12 2004, 10:33 PM-->QUOTE (mikehawk @ Apr 12 2004, 10:33 PM)

<!--QuoteBegin-Blue Vulcan

@Apr 12 2004, 09:06 PM
Strange....you only need to replace the two cats with one high-flow cat on other cars...

You'd have to do quite a bit of custom fabricating to make that work. [/b]

OK I see what you're saying.

 

[silvapain]

Originally posted by mikehawk@Apr 12 2004, 04:16 PM
If you want to replace all of them, then yes, get two catalytic converters. While you're down there screwing with the y-ppie, you may want to replace your o2 sensors as well. There are 4 of them, 2 pre-cat sensors and 2 post-cat sensors. Two different part numbers, too. The front two are the most important o2's, they regulate the air/fuel mix for the car. The two post-cat o2's are only there to make sure your cats are still working.

I don't think that the two post-cat O2 sensors are a different part no. If they are, then it's probably just because of a different length of lead wire.

 

[mikehawk]

Originally posted by silvapain+Apr 13 2004, 05:37 PM-->QUOTE (silvapain @ Apr 13 2004, 05:37 PM)

<!--QuoteBegin-mikehawk

@Apr 12 2004, 04:16 PM
If you want to replace all of them, then yes, get two catalytic converters.  While you're down there screwing with the y-ppie, you may want to replace your o2 sensors as well.  There are 4 of them, 2 pre-cat sensors and 2 post-cat sensors.  Two different part numbers, too.  The front two are the most important o2's, they regulate the air/fuel mix for the car.  The two post-cat o2's are only there to make sure your cats are still working.

I don't think that the two post-cat O2 sensors are a different part no. If they are, then it's probably just because of a different length of lead wire. [/b]

http://www.oxygensensor.net/parts/ford/taurus.html

Two different part numbers for pre vs post cat sensors.

 

[shoz123]

The OBDII cars have a sensor after the cats to check the efficency of the cat. The sensor before the cat is what adjust your A/F ratio. You can get post cat sensor eliminators if you want, but still need the first sensor on each individual downpipe.

If you had the eliminators you could get by with one cat.

 

[gamefanatic]

Hey Guys,
Just wanted to thank you all for the suggestions. I went ahead and bought a MagnaFlow California CAT 43006.

Should have it installed by Sunday. I'm curious though if there would be any benefit to having only 1 CAT? Wouldn't that hinder the exhaust to a certain extent? Also if my current O2 Sensors are testing good would there be any need to replace them?

 

[shoz123]

As long s it is a high flow cat and sized correctly it should not be a restriction.

 

[silvapain]

ALL cats restrict exhaust flow, but sized properly it won't hinder flow any more than your two stock ones did. Maybe even less.