Amazon.com: K&N Engine Air Filter: Reusable, Clean Every 75,000 Miles, Washable, Replacement Car Air Filter: Compatible with 2007-2019 Ford/Lincoln/Volvo (C-Max Escape, Grand, Kuga, Focus, Tourneo, MKC), E-2993 : Automotive
K&N Replacement Air Filter FORD C-MAX 1.6L-L4; 2007 — JST Performance, LLC
Installing a K&N High Flow Air Filter on my 2016 Ford Focus ST - YouTube
2012 Ford Focus K&N Filter Install - YouTube
K&N E-2993 Focus Air Filter Replacement ST 2013-2018/RS 2016-2018
K&N Typhoon Performance Intake For Ford Focus ST - SPEED PERF6RMANC3
Ford Focus RS Drop In Replacement High-Flow Air Filter by K&N
33-2002 K&N Air Filter - Fits 1985-1988 Ford Ranger
K&N Drop-In Air Filter, 2013-18 Focus ST/16-18 Focus RS, Air Intake: Store Name
K&N Replacement Air Filter FORD C-MAX 1.6L-L4; 2007 — JST Performance, LLC
Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 16HP: Compatible with 1.6L, L4, 2007-2018 FORD/VOLVO/MAZDA (C-Max, Focus, Grand, Transit)57S-4000 : Automotive
Definitely recommend the K&N filter for "sound reasons" : r/FordFocus
K&N Filter with Generic Air Intake system For 2012-2018 Ford Focus 2.0L 4Cyl | eBay
K&N 69-3531TS Performance Air Intake System
K&N Typhoon Cold Air Intake Ford Focus 2012-2018 (Non Turbo) – Import Image Racing
K&N 57S Air Filter Induction/Intake/Airbox Kit For Ford Focus RS Mk3 - 57S-4000 | eBay
K&N X-Stream Filter Focus RS Mk2 - K&N - Air Filters / Intake Kits / Induction - Ford Focus RS MK1 / MK2 - Home - JW Racing
K&N Air Filter For Ford Focus MK2 ST / ST225 2.5 Petrol 2005 - 2009 - 33-2873 | eBay
K&N Ford Focus ST Typhoon Performance Intake — Panda Motorworks
K&N E-2993 Hi-Flow Air Intake Drop in Filter for 2012-2018 Ford Focus / ST / RS | eBay
2007 Ford Focus2.0L L4 Gas Air Filter
K&N Air Filter Ford Focus II 1.4L/1.6L/1.8L/2.0L L4 (03-07) Performanc – Redline360
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 Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-9289 Fits select: 2013-2015,2018 FORD FOCUS ST - Walmart.com
&N Replacement Air Filter: Ford Focus ST
K&N engine air filter, washable and reusable: 2007-2019 Ford/Lincoln/Volvo L4 1.5/1.6/2.0/2.3 L (C-Max, Escape, Grand C-Max, Kuga, Transit Connect, Focus, Tourneo, MKC, V40, V70, C30, S40) E-2993 - Walmart.com
K&N Air Filter Ford Focus II 2.5L (05-09) Performance Replacement - 33 – Redline360
