BIG SUCKER STAGE I AIR CLEANERS: TWIN CAM/EVOLUTION/SPORTSTER
Big Sucker™ Stage I Air Cleaners: Twin Cam/Evolution/Sportster
- Engineered and proven to give your engine maximum airflow for more horsepower & torque
- One-piece aluminum backing plate features our patented hidden breather technology, each breather is o-ringed at the heads and exits at the mouth of the throttle body eliminating the need for any external hoses or hardware for efficient engine breathing
- Each backing plate contains a smooth radius air inlet to direct unobstructed airflow into the engine
- Performance air filters are available in standard red pre-oiled cotton & synthetic filter elements
- Standard performance filters are constructed from red pre-oiled cotton and are washable/re-useable, filter re-charge kits available separately
- Synthetic performance filters are constructed from a black synthetic filter element that is wrapped in a stainless steel jacket. Synthetic filters are washable/re-usable, do not require oil, and are water-resistant which in most cases eliminates the need for a rain sock
- Backing plates are available in standard, black, or chrome finish
- Each Stage I kit includes a one-piece aluminum backing plate, performance filter, gaskets, and necessary hardware
Stage 1 kits accept most factory covers and/or Ness air cleaner covers for an exposed look.
- The kits for 01-17 Twin Cam Delphi EFI models do not work with 16-17 Softails and Fxdls Models, 08-17 FXD/FXDWG 08-17 FLHT, FLHR, FLHX, FLTR, AND H-D FL Trike Models (Also do Not Accept OEM Cover Require Round 8" Aftermarket Cover)
- THESE KITS DO NOT INCLUDE A COVER.
DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION-CONTROLLED MOTOR VEHICLES.
IF FOR RACE OR OFF-HIGHWAY USE OUR CA EXHAUST WAIVER WILL NEED TO BE SIGNED AND RETURNED PRIOR TO SHIPPING.
CALIFORNIA CARB WAIVER AVAILABLE HERE: