CatalyticConverter
08-01-14, 12:59 PM
#3
Driver School Candidate
All depends on the emission laws in your area...personally i run no cat since i am not going through any smog tests and turbos don't mix well with them to start hahaha. You can either buy an oe one from lexus for way too much....buy a direct bolt on from a local parts store...buy a universal weld in type or fit a test pipe/punch out old one. Either way up to you no real wrong way of doing it. Only one question comes to mind is why your cat is clogged? Is it due to age? Running too rich? Hope this helped....
08-01-14, 04:03 PM
#4
All depends on the emission laws in your area...personally i run no cat since i am not going through any smog tests and turbos don't mix well with them to start hahaha. You can either buy an oe one from lexus for way too much....buy a direct bolt on from a local parts store...buy a universal weld in type or fit a test pipe/punch out old one. Either way up to you no real wrong way of doing it. Only one question comes to mind is why your cat is clogged? Is it due to age? Running too rich? Hope this helped....
08-01-14, 04:13 PM
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All depends on the emission laws in your area...personally i run no cat since i am not going through any smog tests and turbos don't mix well with them to start hahaha. You can either buy an oe one from lexus for way too much....buy a direct bolt on from a local parts store...buy a universal weld in type or fit a test pipe/punch out old one. Either way up to you no real wrong way of doing it. Only one question comes to mind is why your cat is clogged? Is it due to age? Running too rich? Hope this helped....
08-25-14, 08:05 PM
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Has anyone had catalytic converter issues on GS300?
I have a 2002 GS300 that runs great and is in good condition. The check engine light came on. I need to pass the state emissions inspection. I replaced four O2 sensors but that did not fix the check engine light issue. I am being told the code means catalytic converter and its going to cost $1100 to fix. Has anyone else had any issues with the GS300? Suggestions?
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09-16-14, 12:41 AM
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I have a 2002 GS300 that runs great and is in good condition. The check engine light came on. I need to pass the state emissions inspection. I replaced four O2 sensors but that did not fix the check engine light issue. I am being told the code means catalytic converter and its going to cost $1100 to fix. Has anyone else had any issues with the GS300? Suggestions?
10-01-14, 11:25 PM
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Hey guys I got a question. I have no emission laws where I'm at so I'm not worried about passing any tests or anything. But my converters are clogged and my car is slugging down big time and drinking my gas like water. I wanna know if I just gut out my converter or cut it and put a straight pipe, would that affect the engine negatively at all? Cuz I did a little research and seen continuously that gutting your cats are bad. I just wanna verify if it is and what other options do I have.
10-02-14, 05:36 AM
#10
Lexus Test Driver
If your cats are clogged and you gut them you will notice a difference but for overall performance gutted cats usually have very little positive gains and in some cases even have negative effects. I think the best option would be just deleting the cats all together be using an aftermarket header.
10-02-14, 10:19 AM
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If your cats are clogged and you gut them you will notice a difference but for overall performance gutted cats usually have very little positive gains and in some cases even have negative effects. I think the best option would be just deleting the cats all together be using an aftermarket header.
10-02-14, 12:21 PM
#12
Lexus Test Driver
Positive effects would be a minimal horsepower gain while the negative effects ,which are more likely, will be a pretty sizeable loss in power. In some case I have seen pieces of the cat get pulled in the cylinders if the cat is not completely gutted. Not worth the risk to me.
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