2012 Subaru WRX STI 2.5L H4 Air Filter

2012 Subaru WRX STI 2.5L H4 Air Filter
  • Designed to increase horsepower & torque for the 2012 Subaru WRX STI with the 2.5L engine.
  • Washable & Reusable
  • This K&N WRX STI air filter lasts the lifetime of your vehicle.
  • Million Mile Limited Warranty with use on Street Vehicles
K&N air filters for 2012 Subaru WRX STI models are easy to install because they simply drop into the factory air box. A K&N Subaru performance filter should be your first performance accessory!

Your 2012 Subaru WRX STI deserves a K&N! Select the Product Info button below to see everything the air filter fits.

VehicleProduct  
2012 Subaru WRX STI 2.5L H4 - All Models
Automotive
I have resisted buying a K&N filter for awhile thinking that I would just replace the regular filter at the necessary intervals and not worry about the washing. I figured the performance gains probably weren't worth the trouble. I couldn't have been more wrong. I'm not sure if I picked up any horsepower but the driveablity improved tremendously. Even when the the car was brand new there was a lot of turbo surge and some stuttering at full on throttle. It only got worse as the factory filter got dirtier. With the K&N, there was no stuttering and the turbo surge was much more controlled and progressive. The car is so much more fun drive. And that's why I bought a WRX to begin with.
Pat, Salt Lake City, Utah
Replacement Air Filter
K&N 33-2304
  • Designed to Increase Power
  • Million Mile Limited Warranty
33-2304 2012 Subaru WRX STI 2.5L H4 Replacement Air Filter
List Price: $76.19
Your Price: USD $48.99
In stock