Indian Thunderstroke Performance Air Intake

3% increase in Horsepower. The key to making power with any engine is abundant air and fuel flow into the combustion chamber. Swapping your stock air filter for this High Performance Air Cleaner is a great way to create more power and improve acceleration. This waterproof Performance Air Cleaner is designed with non-woven media to improve power through better flow, and provides high-efficiency cleaning to protect your engine from damaging dirt and debris. The synthetic filtration media operates at a high-filtration efficiency and conveniently requires no filter re-washing like other paper-based or washable filtration systems. The muscle car-inspired design increases the volumetric efficiency and creates a ram air effect, which increases engine power as you increase the speed of the motorcycle. Variable length fins inside the intake tract are tuned to optimize and smooth the airflow inside the housing. The steel cover provides the same legroom as stock. Adding the final bit of style is the iconic Indian® script logo embossed across the face of the housing cover.    This complete kit conveniently includes the required Calibration Code that upgrades the Engine Control Module (ECM) software from stock, allowing this kit to be properly installed by your dealer. No additional software purchase necessary.  Each kit is designated with a warning triangle to indicate the restrictions that may apply. Click on the link below to review potential regulatory penalties for inappropriate installations of this item. Replacement filter, 5415825, available through dealer.   Indian Motorcycle 2024, 2021 Indian Springfield Dark Horse 2024, 2020, 2018 Roadmaster Elite 2024 Roadmaster with PowerBand Audio Package 2024 Roadmaster Limited with PowerBand Audio Package 2024 Roadmaster Dark Horse with PowerBand Audio Package 2024 Indian Springfield 2024 Chieftain Limited with PowerBand Audio Package 2024 Chieftain Dark Horse with PowerBand Audio Package 2023, 2020-2021, 2017-2018 Chieftain Elite 2023-2024, 2014-2020 Chieftain 2022-2023 Chieftain Dark Horse Icon 2021-2024 Roadmaster Limited 2021 Vintage Dark Horse 2020-2024 Roadmaster Dark Horse 2020-2021 Indian Vintage 2020 Indian Chief Dark Horse 2018, 2016 Chief 2018-2020 Springfield Dark Horse 2018-2020 Chieftain Classic 2017-2024 Chieftain Limited 2017-2019 Chief Dark Horse 2017-2018 Roadmaster Classic 2016-2024 Chieftain Dark Horse 2016-2020 Springfield 2015-2024 Roadmaster 2014-2019 Chief Vintage 2014-2018 Chief Classic