What are the cons of "knocking the guts out" of the catalytic converter
07-31-2007, 01:56 PM
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What are the cons of "knocking the guts out" of the catalytic converter
I had my 1.8t rebuilt and as I am putting everything back together, I am thinking about knocking the guts out of the converter. I am curious if it will have any adverse effects on the engine, more specifically the O2 sensors.
07-31-2007, 05:40 PM
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turbulent airflow
depending on the engine (AEB, ATW, etc) you may or may not get a CEL from the rear O2 sensor. You will have to use nonfoulers on the rear sensor.
The front sensor monitors the A/F ratio, the rear sensor does cat efficiency.
Gutting the cat or using a test pipe will not harm the engine.
The front sensor monitors the A/F ratio, the rear sensor does cat efficiency.
Gutting the cat or using a test pipe will not harm the engine.
07-31-2007, 05:55 PM
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CEL - check engine light
non fouler are extensions for the sensors that will move it out of the airstream. The AEB works well with non foulers.
The B5A4 forum has a great FAQ that will answer nearly all of your questions.
We really don't bite over there, just expect noobs to STFA (search the fvcking archives) before asking a question that has been answered several hundred times before.
The B5A4 forum has a great FAQ that will answer nearly all of your questions.
We really don't bite over there, just expect noobs to STFA (search the fvcking archives) before asking a question that has been answered several hundred times before.
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