Catalytic Converter Shopping
Thread Starter
Racer
Joined: Oct 2012
Posts: 313
Likes: 128
Catalytic Converter Shopping
I am now shopping for a replacement main cat for my '89. I'm not replacing the precats it came with originally, being a CA car. But I want a replacement for my main cat similar to or better than what it has now.
I'm looking at:
Walker 15622, direct fit replacement -- $110.79 (Rock Auto)
Magnaflow 93441 direct fit (not CA compliant) -- $374.99 (O'Reilly)
Magnaflow 94019 universal -- $126.99 (O'Reilly)
Does anyone have any experience with any of these? Or have any input on the matter? I know cats aren't all created equal but should I just go with the cheapest one and be done with it?
I'm looking at:
Walker 15622, direct fit replacement -- $110.79 (Rock Auto)
Magnaflow 93441 direct fit (not CA compliant) -- $374.99 (O'Reilly)
Magnaflow 94019 universal -- $126.99 (O'Reilly)
Does anyone have any experience with any of these? Or have any input on the matter? I know cats aren't all created equal but should I just go with the cheapest one and be done with it?
Melting Slicks
Joined: Apr 2001
Posts: 2,120
Likes: 223
From: Ca.
Are you still in Cali? If so you have to get a 50 state with EO number on it and make sure the EO number is facing down where it can be read. Even tho the vette sits low they did reach under and take a pic to verify the EO number on the smog check.
Burning Brakes
Joined: Jan 2014
Posts: 881
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I have the direct fit Magnaflow and am very happy with it. I don’t recall it being that much but I did not buy from O’Reilly. My car is a 1985. Good luck!
Burning Brakes
Joined: Sep 2017
Posts: 941
Likes: 169
I am now shopping for a replacement main cat for my '89. I'm not replacing the precats it came with originally, being a CA car. But I want a replacement for my main cat similar to or better than what it has now.
I'm looking at:
Walker 15622, direct fit replacement -- $110.79 (Rock Auto)
Magnaflow 93441 direct fit (not CA compliant) -- $374.99 (O'Reilly)
Magnaflow 94019 universal -- $126.99 (O'Reilly)
Does anyone have any experience with any of these? Or have any input on the matter? I know cats aren't all created equal but should I just go with the cheapest one and be done with it?
I'm looking at:
Walker 15622, direct fit replacement -- $110.79 (Rock Auto)
Magnaflow 93441 direct fit (not CA compliant) -- $374.99 (O'Reilly)
Magnaflow 94019 universal -- $126.99 (O'Reilly)
Does anyone have any experience with any of these? Or have any input on the matter? I know cats aren't all created equal but should I just go with the cheapest one and be done with it?
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
A straight pipe will flow even more.
If you don't live in CA anymore then a straight pipe would be the best option. Much cheaper then a new cat, and will not restrict flow at all. Do you live in an area that requires emission testing and or a visual inspection? Can this be avoided with classic or antique plates?
Even if you have a visual inspection a pipe welded on the inside of the old cat is a far better option.
If you don't live in CA anymore then a straight pipe would be the best option. Much cheaper then a new cat, and will not restrict flow at all. Do you live in an area that requires emission testing and or a visual inspection? Can this be avoided with classic or antique plates?
Even if you have a visual inspection a pipe welded on the inside of the old cat is a far better option.
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Burning Brakes
Joined: Sep 2017
Posts: 941
Likes: 169
A straight pipe will flow even more.
If you don't live in CA anymore then a straight pipe would be the best option. Much cheaper then a new cat, and will not restrict flow at all. Do you live in an area that requires emission testing and or a visual inspection? Can this be avoided with classic or antique plates?
Even if you have a visual inspection a pipe welded on the inside of the old cat is a far better option.
If you don't live in CA anymore then a straight pipe would be the best option. Much cheaper then a new cat, and will not restrict flow at all. Do you live in an area that requires emission testing and or a visual inspection? Can this be avoided with classic or antique plates?
Even if you have a visual inspection a pipe welded on the inside of the old cat is a far better option.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
I'm not sure how much that O2 really depends on the cats restriction to build heat. If that were true you would need a three wire O2 for higher flowing mufflers or any other exhaust modification that increased flow. A three wire O2 certainly wouldn't hurt. But I question if it would be necessary.
If you were going that route there is a converter that allows you to use a wide band O2. It has a gauge output and a narrow band output. So it will act as your normal O2 sensor but also give you the wide band signal for a gauge for tuning. Kinda neat but definitely more expensive than a OEM three wire narrow band O2.
Thread Starter
Racer
Joined: Oct 2012
Posts: 313
Likes: 128
My car is subject to emissions testing.
Moreover, I like having a clean burning vehicle and the slight hit to performance that a cat brings is perfectly acceptable given the benefits it provides.
I went ahead and ordered the Walker, from Rock Auto. $126 shipped. Should bolt right in.
Moreover, I like having a clean burning vehicle and the slight hit to performance that a cat brings is perfectly acceptable given the benefits it provides.
I went ahead and ordered the Walker, from Rock Auto. $126 shipped. Should bolt right in.
Burning Brakes
Joined: Sep 2017
Posts: 941
Likes: 169
I would put a pipe in it. Having that empty chamber in the exhaust can make them sound pretty bad.
I'm not sure how much that O2 really depends on the cats restriction to build heat. If that were true you would need a three wire O2 for higher flowing mufflers or any other exhaust modification that increased flow. A three wire O2 certainly wouldn't hurt. But I question if it would be necessary.
If you were going that route there is a converter that allows you to use a wide band O2. It has a gauge output and a narrow band output. So it will act as your normal O2 sensor but also give you the wide band signal for a gauge for tuning. Kinda neat but definitely more expensive than a OEM three wire narrow band O2.
I'm not sure how much that O2 really depends on the cats restriction to build heat. If that were true you would need a three wire O2 for higher flowing mufflers or any other exhaust modification that increased flow. A three wire O2 certainly wouldn't hurt. But I question if it would be necessary.
If you were going that route there is a converter that allows you to use a wide band O2. It has a gauge output and a narrow band output. So it will act as your normal O2 sensor but also give you the wide band signal for a gauge for tuning. Kinda neat but definitely more expensive than a OEM three wire narrow band O2.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
Not sure why everything has to go political with you people. Thought we were talking about the exhaust on your car.
Thread Starter
Racer
Joined: Oct 2012
Posts: 313
Likes: 128
I was responding to some random post someone made--now deleted--whinging about Biden flying immigrants around the country to fill in voting demographic voids and whatnot...
Nothing to do with anything preceding it. I'm perfectly happy talking about only exhaust.
If you feel comfortable using the term "libtard" as an adult, I'll leave you to it.
Nothing to do with anything preceding it. I'm perfectly happy talking about only exhaust.
If you feel comfortable using the term "libtard" as an adult, I'll leave you to it.
Drifting
Joined: Nov 2018
Posts: 1,767
Likes: 648
From: USA
I was responding to some random post someone made--now deleted--whinging about Biden flying immigrants around the country to fill in voting demographic voids and whatnot...
Nothing to do with anything preceding it. I'm perfectly happy talking about only exhaust.
If you feel comfortable using the term "libtard" as an adult, I'll leave you to it.
Nothing to do with anything preceding it. I'm perfectly happy talking about only exhaust.
If you feel comfortable using the term "libtard" as an adult, I'll leave you to it.
Thread Starter
Racer
Joined: Oct 2012
Posts: 313
Likes: 128
The last thing I want to do is tangle with a couple captains of the Harvard debate team so let's move on. I knew I was in trouble when Phobos84 lead with a "you people" statement about a total stranger; no way am I going to risk splintering my bow on the rocks of that intellect. And now that I'm being cited as "typical"--forget it! You guys win and you win big. Bigly.
I'll report on the quality and fit of this Walker 15622 when I have it installed.
I'll report on the quality and fit of this Walker 15622 when I have it installed.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
The last thing I want to do is tangle with a couple captains of the Harvard debate team so let's move on. I knew I was in trouble when Phobos84 lead with a "you people" statement about a total stranger; no way am I going to risk splintering my bow on the rocks of that intellect. And now that I'm being cited as "typical"--forget it!
Drifting
Joined: Nov 2018
Posts: 1,767
Likes: 648
From: USA
The last thing I want to do is tangle with a couple captains of the Harvard debate team so let's move on. I knew I was in trouble when Phobos84 lead with a "you people" statement about a total stranger; no way am I going to risk splintering my bow on the rocks of that intellect. And now that I'm being cited as "typical"--forget it! You guys win and you win big. Bigly.
I'll report on the quality and fit of this Walker 15622 when I have it installed.
I'll report on the quality and fit of this Walker 15622 when I have it installed.