Big Sucker® Stage 1 air cleaners are engineered and proven to give your engine maximum airflow for more horsepower and torque. The patented hidden breather backing plate is o-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system, eliminating the need for any external hoses or hardware
- For use with factory air cleaner cover
- Increases Horsepower and Torque
- Patented Hidden Breather Technology
- Pre-Oiled High Performance Filter
- One-Piece Aluminum Backing Plate
- Radius Air Inlet for Unobstructed Airflow
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1999-2001 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | |
| 1999-2001 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | |
| 1999-2001 | Harley-Davidson | Road Glide EFI FLTRI | |
| 1999-2001 | Harley-Davidson | Road King Classic EFI FLHRCI | |
| 2000-2001 | Harley-Davidson | Road King EFI FLHRI | |