For the 2008 2009 Ford Focus with the 2.0L Duratec engine. K&N Engineering has released a High-Flow Intake System (69-3513TTK) in textured black for the 2007 and 2008 Ford Focus 2.0 liter engine. K&N dynamometer test show a 5.24 horsepower gain at 5400 rpm.

The heat shield is engineered to isolate the oversized K&N High-Flow Air Filter (RU-4950) from engine bay heat. K&N Air Intake systems are designed to increase filtering capacity and improve throttle response while providing excellent filtration. As air passes the K&N Air Filter, it travels through the textured black aluminum tube which is attached to the throttle body. The placement of the K&N Air Intake System ensures a steady amount of cooler outside air to the engine which translates into more power.

69-3513TTK Product Specifications
Product Style: 69 Series Typhoon Kits
Estimated Horsepower Gain: 5.24 HP @ 5400 RPM
Color: Textured Black
Replacement Filter: RU-4950
CARB Exempt: No
System Type: Cold-air intake system

Not for earlier model year Focus, there is a different part number for that application.