Velossa Tech BIG MOUTH Ram Air Intake System for Fiesta ST — JST Performance, LLC
High Flow Air Filter Focus St 2013-2018 Focus 2012-2018 Ford Escape 2012-2017 Focus Rs
COBB Tuning - Ford Carbon Fiber Air Scoop Focus RS 2016-2018, Focus ST 2013-2018
cp-e™ αIntake™ Ford Focus ST 2015+ Intake System - cp-e™
2012-2018 For Ford Focus Mk2 Mk3 Rs St Car Air Inlet Filter Box Protection Air Fresher Cover Housing Airbox Net Car Accessories - Air Filters - AliExpress
Ford Focus ST MK4/MK4.5 | OEM+ Intake | Only REVO
Ford Focus ST Cold Air Intake System made by AirAid
Amazon.com: Airaid Cold Air Intake System: Increased Horsepower, Superior Filtration: Compatible with 2013-2018 FORD (Focus, Focus ST)AIR-452-181 : Automotive
Mountune Full High Flow Intake, Focus ST/RS (2536-Fhf-Aa)
What's Up with the Open Airbox? | Ford Focus RS Forum
K&N Drop-In Air Filter, 2013-18 Focus ST/16-18 Focus RS, Air Intake: Store Name
Ford Performance M-9603-FSTA Focus ST Cold Air Intake Box RS 2013-2018
Top 5 Intake Modifications For Ford Focus ST and RS – Vivid Racing News
RS airbox | Ford Focus ST Forum
FSWERKS Green Filter Cool-Flo Air Intake System - Ford Focus ST 2013-2
RS Airbox? Worth it? | Ford Focus ST Forum
How to Make a Custom Air Box For a Focus ST For ONLY $7! - YouTube
VELOSSA TECH 2013-2019+ FORD FOCUS ST/SE/ST-LINE BIG MOUTH RAM AIR INT — Panda Motorworks
7159 Green Filter High Performance Cylindrical Air Filter Green Color – FSWERKS
Cobb High Flow Filter | Ford Focus ST & Focus RS - SPEED PERF6RMANC3
RS airbox users chime in please | Page 2 | Ford Focus ST Forum
K&N Ford Focus ST Typhoon Performance Intake — Panda Motorworks
Focus ST MK4/MK4.5 | Open Cone Intake System | Only REVO
Focus ST cp-e Cold Air Intake Kit With SynoilD/DFlow Filter 2013-2014 Installation - YouTube
Ford Focus 2.0L [#69-3517TS] Air Intake Installation - YouTube