K&N Typhoon Polished Aluminum Cold Air Intake for 02-07 Subaru WRX and 04 05 Subaru STI.

Built for performance and show, the Typhoon™ Air Intake System is a free-flowing mandrel-bent aluminum tube induction system designed to fit many sport compact performance vehicles.

K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction allowing more air flow to your engine. More air means more usable power and acceleration throughout the engine's RPM range.

Estimated horsepower gain is 11 hp @ 4100 RPM.

Includes K&N High-Flow, Washable/Reusable Air Filter. Million Mile Limited Warranty. Easy to install!