M40i stage 2 and CA emissions

06-04-2023, 01:33 AM	#1
Sportskid1 Enlisted Member 14 Rep 35 Posts Drives: X3 m40i Join Date: Mar 2015 Location: los angles iTrader: (0)	M40i stage 2 and CA emissions Looking to install a AA catted downpipe so i can get a stage 2 tune on my 2018 m40i. Does anyone know if it will pass CA emissions if i go back to a stock tune for the emissions test. I dont want to swap out the downpipe every time i have to get it tested.
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