Thunderstroke Stage 1 Performance Air Intake

Unlock a 3% horsepower gain with the Thunderstroke Stage 1 Performance Intake—an OEM air intake assembly engineered to elevate your ride’s power and precision. This performance system increases airflow into the combustion chambers, delivering sharper acceleration, smoother throttle response, and a more dynamic feel with every twist of the throttle. Its sculpted ram-air housing generates pressurized flow that intensifies with speed, while internal variable-length fins are precision-tuned to optimize and smooth the intake path for consistent performance. 

Engine protection is just as robust as the power boost. The non-woven synthetic filtration media traps dirt and debris with high-efficiency performance—without requiring washing or oiling like reusable filters—ensuring clean, uninterrupted airflow that helps safeguard your engine over time. A low-profile steel cover preserves stock legroom while showcasing the embossed Indian Motorcycle script logo, finished in your choice of Chrome or Black for a bold, performance-driven look. 

This complete high performance intake kit includes the intake assembly, synthetic filter, calibration card with a unique ECM update code, installation hardware, and instructions. Dealer installation is required for ECM recalibration to ensure optimal performance—no additional software purchase necessary. Each system is marked with a regulatory warning triangle, and a dedicated OEM replacement filter is available separately for long-term maintenance. 

Important Regulatory Information

This item is only available for purchase and installation at your dealer. To find your dealer, click here.

• 3% Horsepower Gain & Sharper Acceleration: The Thunderstroke Stage 1 Performance Air Intake increases airflow into the combustion chambers, delivering a 3% horsepower gain over stock—along with quicker acceleration, enhanced throttle response, and a more responsive ride. 
• High-Efficiency Synthetic Filtration: This high performance air intake kit features a non-woven synthetic media filter that traps dirt and debris with high-filtration efficiency—helping protect your engine mile after mile without requiring washing or oiling like reusable filters. 
• Ram Air Design with Tuned Internal Fins: Inspired by muscle car engineering, the intake housing generates a ram air effect that boosts engine power as speed increases. Internal variable-length fins are precision-tuned to smooth and optimize airflow for consistent performance. 
• Refined Styling with Embossed Indian Branding: Finished in Chrome or Black, the low-profile steel cover preserves stock legroom and features the iconic Indian Motorcycle script logo—delivering a clean, performance-forward look that reinforces your bike’s bold design. 
• What’s Included: Includes the air intake assembly, synthetic filter, calibration card with a unique ECM update code, installation hardware, and instructions. Dealer installation is required for ECM recalibration to ensure optimal performance. 
• Replacement Filter Available: A dedicated OEM replacement filter is available separately, designed specifically for the Thunderstroke Stage 1 Performance Air Intake—providing convenient maintenance and sustained performance over time. 
• High-Efficiency Synthetic Filtration: This highperformance air intake kitfeatures a non-woven synthetic media filter that traps dirt and debris with high-filtration efficiency—helping protect your engine mile after mile without requiring washing or oiling like reusable filters. 
• What’s Included:Includes the air intake assembly, synthetic filter, calibration card with a unique ECM update code, installation hardware, and instructions. Dealer installation is required for ECM recalibration to ensure optimal performance. 
• Replacement Filter Available: A dedicated OEM replacement filter is available separately, designed specifically for the ThunderstrokeStage 1 Performance Air Intake—providing convenient maintenance and sustained performance over time. 

Material: Injection Molded Plastic

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

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