K&N Replacement Air Filter for 08-21 WRX / 08-18 STi (33-2304) Ticon While its a subtle change

While its a subtle change to the old tool

• Covered in hand stitched Italian leather and Alcantara suede

The SFI Specification establishes uniform test procedures and minimum standards for evaluating and determining performance capabilities specifically for replacement flywheels used by individuals engaged in competitive motorsports

• Brushed Aluminum Piping

Special engineered mounting brackets also serve as ducting to channel air to coolers

K&N Replacement Air Filter for 08-21 WRX / 08-18 STi (33-2304) Ticon While its a subtle changeK&N drop in factory style replacement panel air filter for the 2008 2021 Subaru WRX and 2008 2018 STi. Designed to install easily into your stock air box and increase power. K&N filters are washable, reusable and engineered to last for the entire lifespan of your vehicle. Vehicle Fitment: 2008 2021 Subaru WRX 2008 2018 Subaru STi Note this does not fit 2019+ STi. Use K&N 33 5092 for 2019+ STi. Includes: (1) Air Filter Replacement for these OEM Part