| 09-28-2019, 04:57 AM | #1 |
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What is the definition of "cell" in relation to downpipes?
Can anyone explain?
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| 09-28-2019, 05:28 AM | #2 |
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In scientific terms...
The cell count of a catalytic substrate refers to the number of holes per square inch and is a direct indication of the flow capabilities of that substrate. The lower the count of holes the bigger the hole need to be to fill one square inch, a bigger hole subsequently flows more exhaust gasses. |
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| 09-28-2019, 08:09 AM | #3 |
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Might also refer to CEL or check engine light. A normal occurrence when swapping in catless downpipes. Performance chips typically clear that problem.
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| 09-28-2019, 08:22 AM | #4 |
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I believe what’s going on is the higher cell count means more holes yes, but also more material to react with exhaust gasses to reduce emissions.
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| 09-28-2019, 09:37 AM | #5 |
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CELLS - Literally the little connected boxes inside the converter.
CEL - Check Engine Light The factory converter has 750 cells, and is therefore more restrictive than the after-market converters, which usually have 200 cells. A 300 cell converter will not usually cause a check engine light, but all but 1 (Fabspeed) 200 cell converters will cause a check engine light. |
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