BMW M3 and BMW M4 Forum - View Single Post - Frequency Intelligent FI Downpipe with Flex! F80 M3

pikkagtr · 09-09-2015, 07:16 PM

Doesn't the downpipes retain more heat WITH the catylist ?
Without the reaction from the cats, shouldn't the DPs ONLY heat up as high as the EGT outlets and not much more ?

09-09-2015, 07:16 PM	#15
pikkagtr Go Spurs Go 3922 Rep 2,877 Posts Drives: 2022 GR Zupra Join Date: Jan 2015 Location: Bay Area iTrader: (-1)	Doesn't the downpipes retain more heat WITH the catylist ? Without the reaction from the cats, shouldn't the DPs ONLY heat up as high as the EGT outlets and not much more ?
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