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2008, 2009, 2010 Subaru Impreza WRX STi Gains 17.52 HP with K&N Air Intake Kit

January 3, 2010 Leave a comment

The Subaru Impreza WRX STi is known for its impressive performance, safety and comfort. It offers a wider rear track and an improved brake pedal feel. The new underbody also adds stability and higher speeds.K&N Logo

K&N has developed a cold air intake system, part number 69-8005TTK for the 2008, 2009 and 2010 Subaru Impreza WRX STi with a 2.5 liter engine. K&N dynamometer testing shows a 17.52 horsepower gain at 5260 rpm.

K&N Filters 69-8005TTK Air Intake System

K&N's 69-8005TTK air intake system for the 2008,2009 and 2010 Subaru Impreza WRX STi with a 2.5 liter engine

The 69-8005TTK features an aluminum intake tube in powder coated black and a K&N carbon fiber top round tapered universal air filter, part number RP-5113. Our washable and reusable air filter is isolated by a heat shield to direct fresh air to the engine. This filter captures harmful particles, increases airflow and also increases filter service life compared to the OEM air filter. It will perform for up to 100,000 miles before service is required depending on driving conditions.

K&N Air Intake System Installed

K&N air intake system (with red finish) installed in 2008 Subaru WRX STi

The impressive horsepower gain is also aided by the radius adaptor’s design as it smoothly takes the 5 inch flange of the air filter and connects it with the intake tube. The air intake tube has a CNC precision machined billet mass air adaptor.

Subaru STi

White Subaru Impreza WRX STi

The high-flow technology invented by K&N provides the best balance of airflow and filtration. Designed to be installed with simple hand tools in 90 minutes or less, our K&N air intake systems are backed by the K&N Million Mile Limited Warranty.

Dyno Chart

Dyno chart for 2008 Subaru WRX STi with a 2.5 liter engine

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