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      07-19-2018, 12:13 AM   #4
exE36M3
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Drives: 2015 435i M Sport
Join Date: Jan 2018
Location: NorCal

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Thanks guys... to clarify. I'm good with tunes and basic bolts on to get me closer to 400hp. But not on board with pulling the catalytic converter as I feel that's the No. 1 pollution reducing thing on our cars.

So the tunes or devices don't have to be CARB certified, but at least emissions friendly when not on the gas.

That make sense?
Appreciate 0