- Machined from billet aluminum with a Boyesen one-way reed valve
- Helps reduce crankcase breather pressure
- Reduces oil from head breathers
- Allows engine to rev easier, freeing up horsepower
- Includes hose and breather filter
- No dipstick hose
- Black finish
- Proven on the Trask Performance King of the Baggers race bike
Fits the following:
- Harley-Davidson Breakout FXBR 107: 2018-2019
- Harley-Davidson Breakout FXBR 117: 2023-2024
- Harley-Davidson Breakout FXBRS 114: 2018-2020
- Harley-Davidson CVO Limited FLHTKSE: 2017-2021
- Harley-Davidson CVO Road Glide FLTRXSTSE ST: 2024
- Harley-Davidson CVO Road Glide Limited FLTRKSE: 2022-2023
- Harley-Davidson CVO Tri Glide FLHTCUTGSE: 2020-2022
- Harley-Davidson Deluxe FLDE 107: 2018-2020
- Harley-Davidson Electra Glide Highway King FLHFB: 2023
- Harley-Davidson Electra Glide Revival: 2021
- Harley-Davidson Electra Glide Standard FLHT: 2019-2022
- Harley-Davidson Electra Glide Ultra Classic FLHTCU: 2017-2019
- Harley-Davidson FLTRXP Road Glide Police: 2024
- Harley-Davidson FXDR FXDRS 114: 2019-2020
- Harley-Davidson Fat Bob FXFB 107: 2018-2019
- Harley-Davidson Fat Bob FXFBS 114: 2018-2023
- Harley-Davidson Fat Boy FLFB 107: 2018-2019
- Harley-Davidson Fat Boy FLFBS 114: 2018-2024
- Harley-Davidson Freewheeler FLRT: 2017-2024
- Harley-Davidson Heritage Classic FLHC 107: 2018-2021
- Harley-Davidson Heritage Classic FLHCS 114: 2018-2024
- Harley-Davidson Hydra-Glide Revival FLI: 2024
- Harley-Davidson Low Rider El Diablo: 2022
- Harley-Davidson Low Rider FXLR 107: 2018-2020
- Harley-Davidson Low Rider S FXLRS 114: 2020-2021
- Harley-Davidson Low Rider S FXLRS 117: 2022-2024
- Harley-Davidson Low Rider ST FXLRST 117: 2022-2024
- Harley-Davidson Road Glide 3 FLTRT: 2023-2024
- Harley-Davidson Road Glide FLTRX: 2017-2024
- Harley-Davidson Road Glide Limited FLTRK: 2020-2024
- Harley-Davidson Road Glide ST FLTRXST: 2022-2023
- Harley-Davidson Road Glide Special FLTRXS: 2017-2023
- Harley-Davidson Road Glide Ultra FLTRU: 2017-2019
- Harley-Davidson Road King FLHR: 2017-2022
- Harley-Davidson Road King Special FLHRXS: 2017-2024
- Harley-Davidson Softail Slim FLSL 107: 2018-2021
- Harley-Davidson Softail Standard FXST 107: 2020-2024
- Harley-Davidson Sport Glide FLSB 107: 2018-2021
- Harley-Davidson Street Bob FXBB 107: 2018-2020
- Harley-Davidson Street Bob FXBBS 114: 2021-2024
- + 8 more - see the compatibility chart