Amazon.com: AIRAID Cold Air Intake System by K&N: Increased Horsepower, Cotton Oil Filter: Compatible with 2013-2018 FORD (Focus, Focus ST) AIR-450-181 : Automotive
33-3131 K&N KN Air Filter fits FORD FOCUS MK4 1.0 1.5 & 2.0 Diesel 2018- 24844369963 | eBay
mountune High Flow Air Filter Focus St 2013-2018 for sale online | eBay
K&N E-2993 Focus Air Filter Replacement ST 2013-2018/RS 2016-2018
2012-2018 Focus 2.0L I-4, 2016-2018 Focus RS, & 2013-2018 Focus ST Air Filter | ROUSH Performance
&N Replacement Air Filter: Ford Focus ST
K&N X-Stream Air Filter and adaptor Ring - Mk3 Focus ST - Focus Mk3 1.0 EcoBoost - AJ Motorsport
K&N Air Filter For Ford Focus MK2 ST / ST225 2.5 Petrol 2005 - 2009 - 33-2873 | eBay
K&N drop in filter for the ST | Focus Fanatics Forum
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
Soun of engine Ford Focus ST MK3 (KN 57S air filter kit box) - YouTube
K&N 69-3518TS Focus Cold Air Intake Typhoon Kit ST 2013-2018
2022 Ford Focus ST 2.3L L4 Gas Air Filter
K&N Typhoon Cold Air Intake Ford Focus 2012-2018 (Non Turbo) – Import Image Racing
K&N Typhoon Cold Air Intake System: Ford Focus ST
Installing a K&N High Flow Air Filter on my 2016 Ford Focus ST - YouTube
KN Filters | Ford Focus MK2 + MK3 | Inlegfilter | Autosport Mebu
Green Filter 14-17 Ford Focus ST 2.0L L4 Cylinder Filter - Walmart.com
K&N E-2993 high performance durable drop in panel air filter for Ford Focus Mk2 24844199775 | eBay
E-2993 K&N Air Filter fits FORD FOCUS RS ST 2.0 2.3 2.5 & VOLVO V40 S40 V70 24844199775 | eBay
K&N Air Filter Direct Replacement Ford Focus ST 250 | Graham Goode Racing
K&N 2016-2017 Ford Focus RS 2.3L Typhoon Short Ram Intake – Extreme Performance & Offroad
