Air Filters and Intake Systems

We stock a wide range of high flow air filters and intake systems for your Focus RS.

AIRTEC Motorsport Sound Suppressor for Focus RS MK3

Airtec / Autospecialist

Designed to stop the MK3 RS 'whistle' on idle or light throttle openings. The AIRTEC Motorsport sound suppressor is designed to cancel out this whistle. This is done by simply removing the standard part and replacing it with AIRTEC's sound suppressor.Features:Stops intake whistlePro Hoses silicone hoseEasy DIY installMachined aluminium insert

£29.42£24.52 (ex. VAT)

Ford Focus RS 2.3L Replacement Air Filter

K&N

K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetimeREDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfillsENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performanceEASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminantsULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply

£60.00£50.00 (ex. VAT)

Pro Hoses Two-Piece Induction Hose Kit for Mk3 Focus RS

Pro Hoses

Now available for the Focus RS Mk3. Pro Hoses are proud to offer this two-piece induction hose kit.Available in a varity of colours: Gloss Black, Frozen White, Bright Blue, Race Red, Nitrous Blue + More!Please note: Custom colours are made to order, please expect a 5-10 day delay on custom colours.Peak show times may be a longer 7-10 day delay.Easy DIY installHoses available in 10 different coloursTop induction pipe NOT included

£61.88£51.57 (ex. VAT)

COBB Ford High Flow Filter - MK3 Focus ST & RS

COBB Tuning

Fits:FOCUS ST 2013-2018 PetrolFOCUS RS 2016-2018 PetrolCOBB High Flow Filters are designed to permit very high flow rates, minimize restriction, maximize filtration and provide a long life filter. It uses proprietary Woven cotton and metal mesh with a precision molded rubber base.Ford Focus ST Intake filter dual cone 791100Washable/Reusable Cotton Woven MediaPrecision Molded for Direct Drop In To The Factory Air BoxIncreased Air Flow While Maintaining Filtering EfficiencyPre-Oiled, Dual Cone DesignCompatible with COBB Accessport OTS Maps  MPN: C-791101

£65.00£54.17 (ex. VAT)

COBB Ford Sound Suppression Chamber Focus RS 2016-2018

COBB Tuning

Emissions50 State Legal.  This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-269The Ford Sound Suppression Chamber Focus RS 2016-2018 is a direct replacement to the factory sound suppression resonance chamber. Its purpose is to reduce the intake whistle sounds that accompany aftermarket intakes. This unit is aluminum with an anodized black finish.                         Why? Larger aftermarket intakes create an imbalance with the factory sound suppression chamber resulting in an audible whistle.  The COBB Ford Sound Suppression Chamber increases volume over the factory unit which cancels out the resonance to reduce or eliminate the whistle noise.  It works with most aftermarket intakes. Features Ford Sound Suppression Chamber Focus RS 2016-2018                                                         Reduce or eliminate intake whistle noise                                Works with most aftermarket intakes                                Anodized Black Aluminum                                No Tuning Required                                                                                                        

£75.00£62.50 (ex. VAT)

Steeda Focus / Mondeo Blue replacement cone filter element

Steeda

This is the same style Cone Filter Element that is included with all of Steeda's Focus and Mondeo Cold Air Intakes. Having a spare filter element allows for zero downtime while cleaning your cold air intake system. Comes pre-oiled in blue. The filter element also comes with a new clamp.Cold Air Intake Fitment:555-3169555-3213555-3214Product BenefitsEasy to cleanHigh flow filterMillion mile warrantySwap in while you clean your existing filterPart:281-0009

£89.00£74.17 (ex. VAT)

Direnza Ford Focus MK3 RS / ST250 2.3 / 2.0 12-18 – Vortex Air Induction Scoop

Direnza

All Direnza Cold Air Induction Scoops are manufactured in house, ensuring long-lasting performance enhancements. This piece channels air from the large grille opening directly into the factory snorkel feeding the stock airbox.Designed by Direnza engineers, our Cold Air Induction Scoops enhance air flow into the airbox compared with stock arrangements, boosting your Focus ST’s performance.An increased amount of cooler airflow is key in making the most efficient power out of your Focus ST! Pulling in fresh air from the grill of the Focus ST ensures that air entering into the intake system is as close to ambient as possible.An often-overlooked item, our easy-fit intake scoops are recommended for fitment with a closed airbox for maximum benefit and performance.Designed to replace the OE setup, providing up to 50% more air flowEngineered to help improve throttle responseGains in power and torque are noticeable over a larger RPM rangeA straightforward way to give optimum cooling to your airboxClick here to download fitting instructions

£89.99£74.99 (ex. VAT)

AIRTEC Motorsport Induction Pipe for Focus RS MK3

Airtec / Autospecialist

Fits:Focus RS Mk3High flow crossover pipe designed to help increase airflow.This option is for vehicles that want to retain the look of the standard airbox. Can be fitted with uprated air filter.Features:AIRTEC Motorsport crossover pipeOptional 2 piece silicon hose kitEasy DIY installation

£93.74£78.12 (ex. VAT)

K&N Induction Kit - Focus RS MK3

K&N

Induction KitPerformance Induction Kits (or Intake Kits) come in a variety of different designs dependant on the all application and price, however they all share a common purpose. The main design feature of a Performance Induction Kit is to maximise the air flow in to the engine, this would normally mean the removal of the existing air box on the car and replacing this with some form of open or enclosed cone filter with an additional cold air feed pipe.The benefit of this type of air filter is purely about performance increase, but you also do get a nice induction sound! The power increase comes not only from a larger volume of air in to the engine but the temperature of the air ?›ƒ?ªƒ?? the colder the better as this helps with more efficient combustion. This is why you will find that most kits have a additional cold air pipe, that can be positioned to feed this directly in to the intake kit, while other kits will use additional pipe work to relocate the filter to a better location and away from the high temperatures close to the engine.The final type of kit that is becoming more and more popular is the enclosed type, which uses a traditional cone type filter but housed in a dedicated and specifically designed enclosure, this protects the cold air being fed from the outside being heated inside the engine bay and therefore giving the most performance gain.

£150.35£125.29 (ex. VAT)

Steeda Focus RS cold air intake inlet tube upgrade MK3

Steeda

Manufactured from high quality T-6 aircraft grade United States sourced aluminum, this Intake Tube Upgrade directly replaces the air intake hose between the cold air intake box and the turbo inlet, removing what little restriction is left in the intake system.Comes in a wrinkle black finish with all necessary installation hardware.Product Benefits Direct bolt on replacementUp to 5 more horsepower above what our cold air intake gainsWrinkle black finishFits Vehicle Models: 2016+ Ford Focus RSPart: 555-3216

£299.00£249.17 (ex. VAT)

K&N Induction Kit - Focus RS MK3

K&N

Induction KitPerformance Induction Kits (or Intake Kits) come in a variety of different designs dependant on the all application and price, however they all share a common purpose. The main design feature of a Performance Induction Kit is to maximise the air flow in to the engine, this would normally mean the removal of the existing air box on the car and replacing this with some form of open or enclosed cone filter with an additional cold air feed pipe.The benefit of this type of air filter is purely about performance increase, but you also do get a nice induction sound! The power increase comes not only from a larger volume of air in to the engine but the temperature of the air ?›ƒ?ªƒ?? the colder the better as this helps with more efficient combustion. This is why you will find that most kits have a additional cold air pipe, that can be positioned to feed this directly in to the intake kit, while other kits will use additional pipe work to relocate the filter to a better location and away from the high temperatures close to the engine.The final type of kit that is becoming more and more popular is the enclosed type, which uses a traditional cone type filter but housed in a dedicated and specifically designed enclosure, this protects the cold air being fed from the outside being heated inside the engine bay and therefore giving the most performance gain.

£329.39£274.49 (ex. VAT)

AIRTEC Motorsport Stage 2 Induction Kit Focus MK3 RS

Airtec / Autospecialist

Fits:Focus RS MK3Expect to see gains of 5-10BHP compared to the original air box.Enhanced induction sound, great looks and loud recirculation dump valve noise on let off.Features:Removes ugly original plastic & restrictive air boxAdds power and torquemore responsive and exciting driving experienceEnhanced induction sound and turbo recirculation noise (dump valve 'psssh')free flowing air filter & optional K&N dry charger filter coverCNC MAF sensor boss with AS engraved logoPowder coated alloy heat-shield with 80mm cold feed pipe which directs air to bottom of filterAdds style to your engine bayEasy fittingIt's easy to fit, looks great, sounds even better, doesn't cost the earth and can be put back to standard quickly.

£376.50£313.75 (ex. VAT)

Steeda Focus RS cold air intake

Steeda

The new 2016 MK3 Ford Focus RS is a fantastic performance platform that while already very good, can still be taken to the next level. Take the intake system of your 2.3L Ecoboost Focus RS to the next level with our in house designed, tested, and manufactured Steeda Focus RS Cold Air Intake.This Steeda Focus RS Cold Air Intake for the 2016 Focus RS does not require any ECM tuning making it an easy direct bolt on. With peak to peak gains of 10 horsepower at the wheels, and max gains of up to 16 horsepower, these are performance gains you will definitely feel. Our system incorporates a powder coated heat shield with a billet velocity stack, high flow serviceable air filter, and a silicone intake tube.Our Steeda Focus RS Cold Air Intake for 2016 Focus RS was designed to utilize the cold air feed coming from the grille, while the airbox seals directly to the hood liner to ensure a cool, dense air charge to the engine.Product BenefitsDoes not get heat soaked like factory air boxCools to ambient temperature range significantly faster than the stock unit while producing more powerUtilizes the factory cold air feed duct from the grilleBillet aluminum velocity stackDoes not require any engine tuningGreatly increased intake resonanceLooks great under the hoodSteeda has been building Cold Air Intakes for Ford performance vehicles longer than any other company!part:555-3213

£433.00£360.83 (ex. VAT)

AIRTEC Motorsport Stage 3+ Induction Kit for Focus RS Mk3

Airtec / Autospecialist

Developed and manufactured at AIRTEC HQ in the UK, we’re proud to launch the most comprehensive and least restrictive induction kit available on the market for the Mk3 Focus RS models. It’s suited to modified cars of all specifications, from mild to wild, and aimed at both track and fast road use.The kit has been subject to a lengthy development and testing period in order to ensure it offers the highest levels of unrestricted air flow without compromise. As a result, the Stage 3+ kit features a huge AIRTEC Motorsport cone filter with a 102mm (4-inch) diameter trumpet that flows into 90mm (3.5-inch) diameter pipework to ensure there is minimal restriction.To further enhance this, the pipework takes the simplest and shortest path across the engine, and features only shallow bends to ensure flow remains as constant as possible.In order to allow clearance with the vastly increased pipework, a replacement engine cover is included as part of the comprehensive induction kit package, as is a deflector to help channel cool air towards the filter.As a result, this kit offers the ultimate in improved induction flow that’s above and beyond the ordinary kits found elsewhere on the market.Please note: Will not fit with upper strut brace fitted. Not confirmed to fit pre-facelift ST.Features:Huge cone filter102mm trumpet90mm pipeworkReplacement engine coverAir deflector shieldSilicone hose joinersAll fixtures and fittingsRegistered Design Right numbers: 6154870/6154871/6154872AIRTEC Part No: ATIKFO31

£573.02£477.52 (ex. VAT)

COBB Ford Redline Carbon Fiber Intake System - MK3 Focus RS & ST

COBB Tuning

The COBB Ford Focus ST/RS Redline Carbon Fiber Intake is a great way to dress up your engine bay while increasing engine performance at the same time. The carbon fiber tube and airbox lid are constructed of a 3k tow in a 2x2 twill weave pattern. Everything is held together with black 4-ply silicone couplers accompanied by black e-coated 304 stainless steel hardware. A gloss finish and bespoke Redline-specific badge keeps everything tidy under the hood. Included is a pre-oiled, dual cone, filter to increase airflow and amplify that great turbo sound. This intake is a complete factory replacement all the way to the turbo and is compatible with the original factory tune and all available COBB OTS maps.Fitment verified for right-hand drive and left-hand drive vehicles. Is there ever a bad time for Carbon Fiber parts?The COBB Redline Carbon Fiber Intake frees up airflow and adds a level of refinement under the hood of your Focus ST/RS without any compromises! Add the COBB Carbon Fiber Air Scoop to your Focus ST for the ultimate carbon fiber intake system!Ford Redline Carbon Fiber Intake System Focus RS 2016-2018, Focus ST 2013-20183k tow 2x2 Twill Carbon Fiber ConstructionLarge 3" piping for ideal flowPre-Oiled and Re-usable Dual Cone Air FilterBlack 4-ply Silicone CouplersBlack E-Coated 304 Stainless Steel ClampsMPN: C-793150

£725.00£604.17 (ex. VAT)