Turbocharged 2008 to 2014 Subaru Impreza WRX Gains 14.28 HP with K&N Air Intake Kit

The 2008 Subaru Impreza WRX handles like a rally car with a scoop on the hood for its 2.5 liter four-cylinder intercooled turbocharger engine.

K&N's 69-8004TTK air intake system for the 2008 to 2014 Subaru Impreza WRX with a 2.5 liter engine
K&N's 69-8004TTK air intake system for the 2008 to 2014 Subaru Impreza WRX with a 2.5 liter engine

2008 Subaru Impreza WRX
2008 Subaru Impreza WRX
K&N has developed an air intake system (69-8004TTK) for 2008 to 2014 Subaru Impreza WRX with a 2.5 liter engine. K&N dynamometer testing shows a 14.28 horsepower gain at 5228 rpm.
K&N air intake system prototype installed in 2008 Subaru WRX
K&N air intake system prototype installed in 2008 Subaru WRX


Dyno chart for 2008 Subaru Impreza WRX
Dyno chart for 2008 Subaru Impreza WRX

The 69-8004TTK features a aluminum intake tube in powder coated black and a K&N carbon fiber top filter (RP-5113). Our lifetime washable and reusable air filter is isolated by a steel heat shield to provide fresh air to the engine.

The 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 air intake tube. The air intake tube has a CNC precision machined billet mass air adaptor.

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.

The 69-8004TTK air intake system fits the following Subaru Imprezas:
2014 Subaru Impreza WRX 2.5L
2013 Subaru Impreza WRX 2.5L
2012 Subaru Impreza WRX 2.5L
2011 Subaru Impreza WRX 2.5L
2010 Subaru Impreza WRX 2.5L
2009 Subaru Impreza WRX 2.5L
2008 Subaru Impreza WRX 2.5L - US

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.