33-2877 K&N Air Filter - Fits 2003-2007 Ford Focus
Amazon.com: K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-9289 : Automotive
E-2993 K&N Air Filter fits FORD FOCUS RS ST 2.0 2.3 2.5 & VOLVO V40 S40 V70 24844199775 | eBay
Ford Focus RS | Sound & Power with K&N Air Filter - YouTube
K&N K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2018-2020 FORD (Escape, Focus IV) , 33-3131 in the Automotive Hardware department at Lowes.com
K&N Drop-In Air Filter, 2013-18 Focus ST/16-18 Focus RS, Air Intake: Store Name
&N Replacement Air Filter: Ford Focus ST
Installing a K&N High Flow Air Filter on my 2016 Ford Focus ST - YouTube
K&N 12 - 16 Ford Focus 2.0L Typhoon Performance Intake - SPEED PERF6RMANC3
2012 Ford Focus K&N Filter Install - YouTube
K&N Replacement Air Filter Ford 2.0L 4-Cyl | 33-2401
Ford Focus 2.0L PZEV Receives Extra 5.83 HP with K&N Typhoon Air Intake System
K&N 57S Air Filter Induction/Intake/Airbox Kit For Ford Focus RS Mk3 - 57S-4000 | eBay
Ford Focus 2.0L PZEV Receives Extra 5.83 HP with K&N Typhoon Air Intake System
K&N Replacement Air Filter Focus RS mk3
Definitely recommend the K&N filter for "sound reasons" : r/FordFocus
K&N Performance Air Intake System Ford Focus 2007-2009 2.0L 4-Cyl | 69-3513TTK
2013+ Ford Focus ST owners – we have a drop in K&N air filter for you in stock! – ModernPerformance.com Blog
2017 Ford Focus 2.0L L4 Gas Air Filter
K&N Filter with Generic Air Intake system For 2012-2018 Ford Focus 2.0L 4Cyl | eBay
2004 Ford Focus SVT 2.0L L4 Gas Air Intake
Ford Focus RS Drop In Replacement High-Flow Air Filter by K&N
Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 10HP: Compatible with 2.0L, L4, 2012-2018 Ford Focus, 69-3517TS : Automotive
Amazon.com: K&N Cold Air Intake Kit: Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 7HP: Compatible with 2.0L, L4, 2013-2018 FORD (Focus ST), 69-3518TS : Automotive
2017 Ford Focus 2.0L L4 Gas Oil Filter
