K&N parts matching BMC FB21701 air filter

The BMC FB21701 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many BMC air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Dave Pitches, Mablethorpe Lincs, United Kingdom
As usual, improved performance by around 8 and fuel economy. Fitted to my Astra H 1.6 vvt with a lpg system fitted. I don't fit cone filters, but K&N replacement filters into existing airbox. My BMW Z3 2.8 has had one fitted for 2 years now and breaths very freely.
Rob, Essex, United Kingdom
Have a 2.0 turbo diesel Zafira, poped in KN panel filter (33-2787) and felt difference straight away. The engine can now breathe so it is more responsive, as a guess as to power gain from this filter I would put at 3-4 hp.
Sébastien Laibach, Toulouse, France
Livraison ultra rapide Améliore vraiment la circulation d'air Super produit
33-2787 K&N 33-2787 Replacement Air Filter
List Price: $78.19
Your Price: $49.99