Indian Motorcycle Thunder Stroke® Stage 1 Slip-On Exhaust Kit

Amplify your ride with the Indian Motorcycle Thunderstroke Stage 1 Slip On Exhaust, precision-tuned to produce a rich, deep rumble at low RPMs and a bold, full-throated sound at higher speeds. This high-performance dual exhaust system reduces backpressure and improves airflow from header pipe to tip—helping your engine breathe more freely and unlocking increased power, stronger mid-range torque, and a sharper, more responsive throttle feel. 

Designed to integrate seamlessly with your Indian Motorcycle’s hard saddlebags, this system completes your custom look with your choice of exhaust tips (required, sold separately) for a bold, factory-custom finish. For maximum performance and an even deeper intake tone, pair it with a Stage 1 Air Intake (sold separately) to complete your full Stage 1 upgrade. 

This high-performance motorcycle exhaust kit includes two (2) heavy-duty exhaust slip on pipes, installation hardware, step-by-step instructions, and a calibration card with a unique ECM update code.

Dealer installation is required to apply the ECM software upgrade and ensure optimal performance.  

• Signature Sound Upgrade: The Indian Motorcycle Thunderstroke Stage 1 Slip On Exhaust delivers a rich, deep rumble at low revs and a bold, full-throated sound at high revs—amplifying your ride’s auditory presence. 
• Performance Gains Across the Powerband: This high-performance dual exhaust kit helps your engine breathe more freely—unlocking increased power, stronger mid-range torque, and sharper throttle response. 
• Factory-Custom Finish with Interchangeable Tips: Choose from a variety of exhaust tip styles (required, sold separately) to personalize your performance exhaust system and achieve a bold, factory-custom look. 
• Enhanced Intake Tone When Paired with Stage 1 Air Intake: Combine with a Stage 1 Air Intake (sold separately) for a deeper, more aggressive intake note and a more immersive riding experience. 
• Stage 1 Synergy: Engineered for seamless integration with a Stage 1 Air Intake, this system maximizes airflow, tone, and overall performance across your complete Stage 1 upgrade. 
• What's Included: A pair of heavy-duty OEM slip-on exhaust pipes, a calibration card with a unique ECM update code, installation hardware, and step-by-step instructions. 

Orders $89 and over qualify for free standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

Orders under $89 qualify for $4.99 standard shipping via Ground (UPS, FedEx, USPS) to the contiguous 48 US states. Shipping will be calculated for orders to Alaska, Hawaii, and U.S. Territories including Puerto Rico, Guam, and U.S. Virgin Islands.

P.O. Box Shipping. If you list a PO Box and select free shipping, please add a customer note with your order including a physical shipping address. We will ship to a PO Box if the shipping is comparable to other carriers. Otherwise we may need to ship to physical address or charge additional shipping fees.

Learn about additional details and restrictions by reading our full Shipping Policy

If your order arrives and it is not right, we’ll fix it…period. Doesn't fit or you're simply not happy with your item? Return any new, unused and unaltered item within 30 days of delivery of your item. Learn about additional details and restrictions by reading our full return policy.