&N Replacement Air Filter: Ford Focus ST
K&N Select Engine Air Filter: High Performance, Premium, Washable, Replacement Filter, SE-2993 Fits select: 2012-2018 FORD FOCUS, 2013-2019 FORD ESCAPE - Walmart.com
K&N E-9289 Replacement Air Filter Focus 2013-2017
K&N E-2993 Replacement Air Filter
K&N Filters E-9289 High Flow Air Filter Fits 13-17 Ford Focus Transit Connect | eBay
K&N 57i performance injection air filter kit: Ford Focus Mk1 1.4/1.6 -05
Amazon.com: K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles, Washable, Premium, Replacement Car Air Filter: Compatible with 1998-2008 FORD (Tourneo Connect, Transit, Focus, Focus ST170, SVT), 33-2819 : Automotive
Installing a K&N High Flow Air Filter on my 2016 Ford Focus ST - YouTube
K&N Replacement Air Filter Focus RS mk3
K&N Select Engine Air Filter: High Performance, Premium, Washable, Replacement Filter, SE-2993 Fits select: 2012-2018 FORD FOCUS, 2013-2019 FORD ESCAPE - Walmart.com
K&N Filter with Generic Air Intake system For 2012-2018 Ford Focus 2.0L 4Cyl | eBay
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2008-2011 FORD (Focus), 33-2401 - Walmart.com
1998-2004 Ford Focus K&N Air Filter - K&N 33-2819
K&N Air Filter Ford Focus II 1.4L/1.6L/1.8L/2.0L L4 (03-07) Performanc – Redline360
33-2748-1 K&N Air Filter - Fits 2006-2008 Ford Focus
K&N Replacement Air Filter - Round Tapered - Universal 5.75in Base OD – Hobby Shop Garage
K&N Typhoon Performance Intake For Ford Focus ST - SPEED PERF6RMANC3
K&N Air Filter For Ford Focus MK2 ST / ST225 2.5 Petrol 2005 - 2009 - 33-2873 | eBay
Ford Focus Mk3 K&N 57I Cone Air Filter - Focus Mk3 1.0 EcoBoost - AJ Motorsport
Definitely recommend the K&N filter for "sound reasons" : r/FordFocus
K&N Ford Focus ST Typhoon Performance Intake — Panda Motorworks
2004 Ford Focus II1.6L L4 Gas Air Filter
2019 Ford Focus IV1.5L L3 Gas Air Filter
Ford Focus RS / ST Performance Oil Filter by K&N
K&N 12 - 16 Ford Focus 2.0L Typhoon Performance Intake - SPEED PERF6RMANC3
2010 Ford Focus2.0L L4 Gas Air Filter
K&N Drop-In Air Filter, 2013-18 Focus ST/16-18 Focus RS, Air Intake: Store Name
K&N Hi-Flow Air Intake Filter E-2993 For Ford Focus Escape MKC *See Detail* | eBay
