Indian Motorcycle Thunderstroke Stage 1 High Flow Air Intake — Chrome

Dealer installation required. This item can be purchased online, but must be installed by an authorized Indian Motorcycle dealer. Installation and any required programming labor are not included in the listed price.

Designed to elevate both power and rider comfort, the Thunderstroke Stage 1 High Flow Air Intake increases airflow into the combustion chambers—helping your engine breathe easier for stronger acceleration and a smoother, more responsive throttle feel. This high flow intake system features a sculpted open-element housing paired with a washable, high-flow filter that enhances intake efficiency while protecting the engine through long-term, reusable filtration.

Engineered with a 1-inch narrower footprint than the stock intake, this system provides added legroom on the left side while maintaining a clean, factory-level fit. For riders seeking maximum gains in power, throttle response, and a deeper, more resonant exhaust note, it pairs seamlessly with a Stage 1 Slip-On Exhaust Kit (sold separately). Finished in your choice of Chrome or Black, the bold housing features the iconic Indian Motorcycle script logo—delivering a performance-forward look that complements your bike’s design.

This complete kit includes the full air intake assembly, reusable filter, calibration card with a unique ECM update code, installation hardware, and instructions. Each kit is marked with a warning triangle to indicate any applicable regulatory restrictions. Dealer installation is required for ECM recalibration to ensure optimal performance.

Important Regulatory Information

Dealer installation is required. Contact RiderMarket Orlando to arrange installation.

Overview

Increased Power & Smoother Throttle Response: The Thunderstroke Stage 1 High Flow Air Intake boosts airflow into the combustion chambers, helping your engine breathe more freely. The result: increased power and a smoother, more responsive throttle feel.

Enhanced Acceleration & Intake Efficiency: This high performance air intake kit features a refined housing and high-flow filter that improve airflow and intake performance for snappier acceleration and optimized ride dynamics.

Slimmer Profile for Added Legroom: With a 1-inch narrower footprint than the standard intake, this high flow air filter intake provides added left-side legroom and a clean, factory-level fit.

Removable, Washable Filter Element: The reusable filter element is easy to remove, clean, and reinstall—supporting long-term engine health and consistent performance with simple maintenance.

Bold Styling with Embossed Script Logo: Finished in Chrome or Black, the sculpted housing features the iconic Indian Motorcycle script logo—delivering a bold, performance-forward look that complements your bike’s design.

What’s Included: Includes the full air intake assembly, reusable filter, calibration card with a unique ECM update code, installation hardware, and instructions. Dealer installation is required for ECM recalibration to ensure optimal performance.

Specifications

What is included

Air Filter Assembly, Calibration, Installation Hardware, and Installation Instructions

Manufacturer-listed fitment

• 2026, 2014-2019 Chief Vintage
• 2026 Roadmaster 125th Anniversary Edition
• 2026 Chief Vintage 125th Anniversary Edition
• 2025-2026 Super Chief Dark Horse
• 2025-2026 Sport Chief RT
• 2025 Indian Springfield Special Edition
• 2024-2026, 2022 Chief Bobber
• 2024-2026, 2018, 2016 Chief
• 2024-2026 Roadmaster with PowerBand Audio Package
• 2024-2026 Roadmaster Limited with PowerBand Audio Package
• 2024-2026 Roadmaster Dark Horse with PowerBand Audio Package
• 2024-2026 Chieftain Limited with PowerBand Audio Package
• 2024-2026 Chieftain Dark Horse with PowerBand Audio Package
• 2024-2025, 2020, 2018 Roadmaster Elite
• 2024-2025, 2014-2020 Chieftain
• 2024 Super Chief
• 2023, 2020-2021, 2017-2018 Chieftain Elite
• 2023-2026 Sport Chief
• 2023 Super Chief Limited Icon
• 2022-2026, 2017-2019 Chief Dark Horse
• 2022-2026 Super Chief Limited
• 2022-2026 Chief Bobber Dark Horse
• 2022-2023 Chieftain Dark Horse Icon
• 2021-2026 Roadmaster Limited
• 2021-2026 Indian Springfield Dark Horse
• 2021-2026 Indian Springfield
• 2021 Vintage Dark Horse
• 2020-2026 Roadmaster Dark Horse
• 2020-2021 Indian Vintage
• 2020 Indian Chief Dark Horse
• 2018-2020 Springfield Dark Horse
• 2018-2020 Chieftain Classic
• 2017-2026 Chieftain Limited
• 2017-2018 Roadmaster Classic
• 2016-2026 Chieftain Dark Horse
• 2016-2020 Springfield
• 2015-2026 Roadmaster
• 2014-2018 Chief Classic

Match the exact model, year, trim, and required installation components before ordering.

Manufacturer notices

• Important regulatory information
• California Proposition 65 warning