BMW M3 Forum (E90 E92) - View Single Post - Does any one replace their primary cats with high flow primary cats? especially s/c'd

SAMM3Y · 05-08-2020, 11:58 PM

Any idea of your EGT's? How hard do you drive it? Why not move them down steam, Why do you want them in the primary position?

05-08-2020, 11:58 PM	#6
SAMM3Y Colonel 3085 Rep 2,747 Posts Drives: 2008 m3 Join Date: Feb 2018 Location: NorCal iTrader: (2)	Any idea of your EGT's? How hard do you drive it? Why not move them down steam, Why do you want them in the primary position? __________________ 9ers
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