BMW 3-Series (E90 E92) Forum - View Single Post - VRSF catless downpipe fix

IllSic_Design · 02-02-2018, 01:04 PM

No, as said you only put them in for emissions testing. To get rid of the light on the dash you use a tune like MHD or a piggyback like JB4, you will still have codes but they don't affect anything.

02-02-2018, 01:04 PM	#21
IllSic_Design Colonel 2124 Rep 2,758 Posts Drives: 09 E92 335i Join Date: Jun 2016 Location: Northern California iTrader: (1)	No, as said you only put them in for emissions testing. To get rid of the light on the dash you use a tune like MHD or a piggyback like JB4, you will still have codes but they don't affect anything.
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