BMW N54 Drop In Air Filter 540i (G38) The ARM F3X N55 Hose

The ARM F3X N55 Hose Upgrade reduces the overall amount of connections needed for the charge-air piping to only 4

4" air intake pipe for maximum airflow

Don't know what to get that auto-enthusiast in the family for a gift but know they always want car parts

enhancing your fuel delivery for optimal performance

All others

BMW N54 Drop In Air Filter 540i (G38) The ARM F3X N55 HoseGive your BMW increased power, acceleration and better fuel economy with a drop in performance filter. You've seen the dyno charts showing how much more power the BMS open air filters make. You've watched the videos showing how much better they sound. You've read the hundreds of favorable customer reviews. And, after all that, you still prefer a high flow drop in filter? Worry not, BMS has got you covered! Introducing the drop in filter, offering