Negligible power gains if that's what you're looking for. Best thing about them is their potential longevity vs a standard filter, but then they cost more too. Some makers warn of their use (oil based filter) because some of that might dirty the MAF sensor.
__________________
2020 X4M Comp. (currently stock) - Was 2015 335 MSport -MPPK -Borla ATAK -Dinan Sport+ - E.R. Charge pipe / 2013 X1 35i Sport - Dinan tune / 2009 X6 50i Dinan badged
|