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 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 available in standard, black or chrome finish
- Each Stage I kit includes one-piece aluminum backing plate, performance filter, gaskets, and necessary hardware
NOTE:
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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:
https://cdn.shopify.com/s/files/1/0157/0363/8064/files/CA_CARB_Waiver.pdf?573