K&N Typhoon Air Intake for Ford Focus RS - Like Extra Thrust For Your Rocketship
- 14 Jun 2017
Chassis dynamometer testing verified an estimated increase from 224.46 horsepower to 258.47 horsepower, as measured at the drive wheels, on the same Ford Focus RS on the same day, with the only change being the installation of a K&N 69-3539TB. The Focus RS features a 2.3L DOHC turbocharged EcoBoost engine delivering an astonishing 350 horsepower stock that can launch it from 0-60 mph in 4.5 seconds, which is just a tick slower than the Ford GT 40 Mk II that won the 24 Hours of Le Mans. The 2.3L EcoBoost is an all-aluminum four-cylinder engine, with DOHC and four valves per cylinder with Twin Independent Variable Cam Timing (Ti-VCT). Stroke is unusually long for a performance engine at 94 mm versus a bore of 87.6 mm. Intake air is compressed by a Honeywell twin-scroll fixed geometry turbocharger, with engine management by a Bosch MEDG17-I4. Full power comes on a relatively low 6000 rpm, with peak torque at 3200 rpm.
As is the case with virtually all turbocharged engines and virtually all direct injection engines, the more intake air you can feed into the system, the more power the engine will make. In the example of the Ford Focus RS, an additional mass of air fed into the turbocharger is supplementary to what it normally draws, so its output is increased proportionally to the increase in input. With this increase of air entering the combustion chamber, the electronic engine management of the Focus RS increases the amount of fuel to maintain the proper ratio of combustion. With more air and more fuel, more power is made. And that’s the basics of the K&N 69-3539TB Typhoon air intake system. The 69-3539TB Typhoon air intake system is designed to fit 2016 and 2017 Ford Focus RS models. The power increase is achieved by replacing the OEM factory air filter, intake tube, and air filter housing with a aerodynamically-verified K&N Typhoon mandrel-bent aluminum tube air intake system, which is designed to dramatically reduce air flow restriction as it smooths and straightens air flow.
Included in the 69-3539TB Typhoon air intake kit is a K&N high-flow RU-5163 air filter and a heat shield that installs in the original factory mounting location. Much of the horsepower gain can be attributed to the oversized conical air filter manufactured from multiple layers of oiled cotton filter media -- which offers less resistance than traditional paper filters. The multi-layered red cotton material also filters out microparticles that could damage your engine. Each filter design is verified through K&N’s in-house testing lab, which adheres to ISO 5011 standards, ensuring that your K&N filter provides high airflow without putting engine protection at risk.
This Typhoon air intake is relatively easy to install, typically in 90 minutes of less using common hand tools. All tools required are listed in the clear, step-by-step photo-illustrated instructions specific to your Ford Focus RS that comes included in the shipping carton. The K&N air filter you purchase is designed to last for the lifetime of your vehicle, which K&N guarantees with a 10-Year/Million Mile Limited Warranty. The K&N 69-3539TB fits the following vehicles: 2017 FORD FOCUS 2.3L L4 Fuel Injection - All Models | ||||
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