I have seen the cut open videos online, they look solid however they don't publish any flow data or lifespan anywhere. Are they FU or M1 quality or lower?
Originally Posted by DONWATERS
I have seen the cut open videos online, they look solid however they don't publish any flow data or lifespan anywhere. Are they FU or M1 quality or lower?
The K&N white are M-1 and Fram Ultra quality. My black k&n looks solid and even has silicone ADBV. It looks equal to a Fram Tough Guard or Wix.