Direct-fit, washable cotton panel filters for BMWs with S55 and S63 engines - no cutting, no remap, no warranty worries. Drop straight into the stock airbox.
Sharper throttle response and a deeper, more engaging induction note on road or track
True high-flow filtration - cotton gauze outperforms OEM paper without sacrificing protection
Reusable for life - clean with standard filter oil and cleaner; no replacement costs
Sold as a matched pair: left and right filters included
