G20 BMW 3-Series Forum - View Single Post - What is the definition of "cell" in relation to downpipes?

c1pher · 09-28-2019, 07:22 AM

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.

09-28-2019, 07:22 AM	#4
c1pher Primo Generalissimo 4672 Rep 4,022 Posts Drives: All of them Join Date: Jun 2009 Location: DC area iTrader: (0) Garage List 2017 Porsche 911 Ca ... [10.00] 2023 BMW M2 [9.00] 2023 Porsche Macan GTS [10.00] 2022 Ford F-250 Tremor [8.50]	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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