M8 Knuckle Stage I 'Big Sucker' Air Filter Kit for Harley-Davidson

Black anodized finish.

Air filter element pre-greased with black oil.

This Stage 1 high-performance air filter kit for M8 models is perfect for those who think the stock air filter isn't enough.

Offers easy bolt-on installation and improved aesthetics.

The patent-pending hidden vent system is sealed with O-rings in the cylinder heads, passes through the backing plate, and exits the throttle body through patented exhaust tubes.

- Increases power and torque compared to the standard engine

- Eliminates oil leak problems associated with M8 engines

- Black pre-oiled high-flow cotton gauze air filter element

- Concealed ventilation technology (patent pending)

- Oil reservoir/seal (patent pending)

- One-piece aluminum support plate

- Aluminum filter top plate.

Fits: Softail > 18-24 ; 17-25 FLT/Touring (except FLHX 24-25; FLHXU 2025; FLTRX 24-25; FLHXSE 23-25; FLTRXSE 23-25; FLTRXSTSE 24-25); 17-25 Trikes. With OEM HD/Screamin' Eagle oval vent support plate.