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
This item is only available for purchase and installation at your dealer. To find your dealer, click here.
- 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.
- Boosts Engine Performance: Increases airflow for more power and enhanced acceleration.
- Upgrades Style and Sound: Adds high-performance style and a deeper intake sound.
- Pairs with Stage 1 Exhaust: Complements a Stage 1 Slip-On Exhaust Kit (sold separately). Installing both accessories will maximize your Stage 1 power, sound and style upgrade.
- Enhances Comfort: 1” narrower profile creates extra legroom.
- Includes Iconic Branding: Available in black or chrome with embossed Indian Motorcycle branding.
- What's Included: Air intake assembly, calibration card with unique code for updating ECM software, installation hardware, and installation instructions.
Material: Chrome Aluminum Cover / Gloss Black Aluminum Cover
Care: Please see your Indian Motorcycle® Riders Manual for specific cleaning and maintenance instructions.
Warranty: 1 Year From Date of Purchase
Kit Includes: Includes air intake assembly, calibration card with unique code for updating ECM software, installation hardware, and installation instructions.
Recommended with: Stage 1 Slip-On Exhaust and/or Stage 2 Performance Cams
Fits: 2026 CA - Chief Black Metallic, 2026 CA - Chief Bobber Black Metallic, 2026 CA - Chief Bobber Dark Horse Black Smoke, 2026 CA - Chief Bobber Dark Horse Ghost White Metallic Smoke, 2026 CA - Chief Bobber Dark Horse Moss Green, 2026 CA - Chief Dark Horse Black Smoke, 2026 CA - Chief Dark Horse Deep Blue Metallic, 2026 CA - Chief Dark Horse Heavy Metal, 2026 CA - Chief Vintage Black Metallic, 2026 CA - Chief Vintage Indian Red, 2026 CA - Chieftain Dark Horse Black Smoke, 2026 CA - Chieftain Dark Horse Deep Blue Metallic, 2026 CA - Chieftain Dark Horse with PowerBand Audio Package Black Smoke, 2026 CA - Chieftain Dark Horse with PowerBand Audio Package Deep Blue Metallic, 2026 CA - Chieftain Limited Sunset Red Metallic, 2026 CA - Chieftain Limited with PowerBand Audio Package Sunset Red Metallic, 2026 CA - Indian Springfield Dark Horse Black Smoke, 2026 CA - Indian Springfield Dark Horse Ghost White Metallic Smoke, 2026 CA - Indian Springfield Nara Bronze Metallic / Black Metallic, 2026 CA - Indian Springfield Sunset Red Metallic/Silver Quartz Metallic, 2026 CA - Roadmaster Dark Horse Black Smoke, 2026 CA - Roadmaster Dark Horse Heavy Metal Smoke, 2026 CA - Roadmaster Dark Horse with PowerBand Audio Package Black Smoke, 2026 CA - Roadmaster Dark Horse with PowerBand Audio Package Heavy Metal Smoke, 2026 CA - Roadmaster Deep Blue Metallic with Silver Quartz, 2026 CA - Roadmaster Limited Sunset Red Metallic, 2026 CA - Roadmaster Limited with PowerBand Audio Package Sunset Red Metallic, 2026 CA - Roadmaster with PowerBand Audio Package Deep Blue Metallic with Silver Quartz, 2026 CA - Sport Chief Black Smoke, 2026 CA - Sport Chief Heavy Metal Smoke, 2026 CA - Sport Chief Indy Red, 2026 CA - Sport Chief RT Black Smoke, 2026 CA - Sport Chief RT Heavy Metal, 2026 CA - Sport Chief RT Storm Blue, 2026 CA - Sport Chief RT Vibrant Gold Metallic, 2026 CA - Super Chief Dark Horse Black Metallic, 2026 CA - Super Chief Dark Horse Sunset Red Metallic, 2026 CA - Super Chief Limited Black Metallic, 2026 CA - Super Chief Limited Chalk, 2026 CA Chief Vintage 125th Anniversary Edition 125th Anniversary Red with Black Crystal, 2026 CA Roadmaster 125th Anniversary Edition 125th Anniversary Red with Black Crystal, 2026 Chief Black Metallic, 2026 Chief Bobber Black Metallic, 2026 Chief Bobber Dark Horse Black Smoke, 2026 Chief Bobber Dark Horse Ghost White Metallic Smoke, 2026 Chief Bobber Dark Horse Moss Green, 2026 Chief Dark Horse Black Smoke, 2026 Chief Dark Horse Deep Blue Metallic, 2026 Chief Dark Horse Heavy Metal, 2026 Chief Vintage 125th Anniversary Edition 125th Anniversary Red with Black Crystal Fade, 2026 Chief Vintage Black Metallic, 2026 Chief Vintage Indian Red, 2026 Chieftain Dark Horse Black Smoke, 2026 Chieftain Dark Horse Deep Blue Metallic, 2026 Chieftain Dark Horse with PowerBand Audio Package Black Smoke, 2026 Chieftain Dark Horse with PowerBand Audio Package Deep Blue Metallic, 2026 Chieftain Limited Sunset Red Metallic, 2026 Chieftain Limited with PowerBand Audio Package Sunset Red Metallic, 2026 INTL - Chief Bobber Dark Horse Black Smoke, 2026 INTL - Chief Bobber Dark Horse Moss Green (+537 more)
