This Thunderstroke 116 Stage 3 Big Bore Kit transforms a Thunderstroke 111 cubic inch engine into a high-performance 116 cubic inch powerplant delivering up to 20% more horsepower and up to 15% more torque*. Enjoy responsive, punchy acceleration from a stop and plenty of no-lag passing power at highway speeds. With this kit, you’ll never compromise reliability or ride quality. Plus, Indian Motorcycle stands behind every accessory with warranty protection and the guarantee that you'll never void your motorcycle’s warranty when you install a factory-backed stage kit. This Stage 3 Kit must be installed in-conjunction with a Stage 1 Air Intake and Stage 1 Slip-On Exhaust Kit (each required and sold separately).
This kit includes a card with a unique calibration code that upgrades your Engine Control Module (ECM) software from a standard set-up. This software upgrade is required to ensure peak performance; therefore, dealer installation is required.
*Increase results may vary depending on specific testing conditions.
Stage 3 installations on MY25 models are currently unavailable.
Important Regulatory Information
This item is only available for purchase and installation at your dealer. To find your dealer, click here.
- Increase Horsepower and Torque: Unleash up to 20% more horsepower and up to 15% more torque* than a Thunderstroke 111 ci engine.
- Enhance Performance: Enjoy responsive, punchy acceleration from a stop and plenty of no-lag passing power at highway speeds.
- Requires Stage 1: Install in-conjunction with a Stage 1 Air Intake and Stage 1 Slip-On Exhaust Kit (each required and sold separately).
- Requires Dealer Installation: Upgrades internal engine components and requires a software upgrade that ensures peak performance.
- What's Included: Various internal engine components including larger throttle body, high-performance camshafts, big bore pistons, and new cylinders, all necessary hardware, calibration, and installation instructions.
Material: Steel
Care: Please see your Indian Motorcycle® Riders Manual for specific cleaning and maintenance instructions.
Warranty: 1 Year From Date of Purchase
Kit Includes: Includes various internal engine components including larger throttle body, high-performance camshafts, big bore pistons, and new cylinders, all necessary hardware, calibration, and installation instructions.
Recommended with: Stage 1 Exhaust, Stage 1 Air Intake and Exhaust Tips
Required (sold separately): Stage 1 Exhaust (2879768-156/266 or 2879769-156/266), Exhaust Tips and Stage 1 Performance Air Cleaner (2881779-156/521) or Thunderstroke® High Flow Air Cleaner (2880654-156/266) (each sold separately).
Fits: 2019 CA - Chief Dark Horse Thunder Black Smoke, 2019 CA - Chief Vintage Sky Blue/Pearl White, 2019 CA - Chief Vintage Thunder Black, 2019 CA - Chief Vintage Willow Green/Ivory Cream, 2019 CA - Chieftain Classic Deep Water Metallic/Dirt Track Tan, 2019 CA - Chieftain Classic Thunder Black, 2019 CA - Chieftain Classic Thunder Black/Ivory Cream, 2019 CA - Chieftain Dark Horse Bronze Smoke, 2019 CA - Chieftain Dark Horse Thunder Black Smoke, 2019 CA - Chieftain Dark Horse White Smoke, 2019 CA - Chieftain Limited Ruby Metallic, 2019 CA - Chieftain Limited Thunder Black Pearl, 2019 CA - Chieftain Steel Gray, 2019 CA - Roadmaster Burgundy Metallic, 2019 CA - Roadmaster Elite, 2019 CA - Roadmaster Limited Pearl White/Star Silver, 2019 CA - Roadmaster Limited Polished Bronze/Thunder Black, 2019 CA - Roadmaster Limited Steel Gray Smoke/Thunder Black Smoke, 2019 CA - Roadmaster Thunder Black, 2019 CA - Springfield Dark Horse Thunder Black Smoke, 2019 CA - Springfield Dark Horse White Smoke, 2019 CA - Springfield Metallic Jade/Thunder Black, 2019 CA - Springfield Steel Gray/Burgundy Metallic, 2019 CA - Springfield Thunder Black, 2019 Chief, 2019 Chief Dark Horse Thunder Black Smoke, 2019 Chief Vintage Sky Blue/Pearl White, 2019 Chief Vintage Thunder Black, 2019 Chief Vintage Willow Green/Ivory Cream, 2019 Chieftain, 2019 Chieftain Classic Deep Water Metallic/Dirt Track Tan, 2019 Chieftain Classic Thunder Black, 2019 Chieftain Classic Thunder Black/Ivory Cream, 2019 Chieftain Dark Horse Bronze Smoke, 2019 Chieftain Dark Horse Thunder Black Smoke, 2019 Chieftain Dark Horse White Smoke, 2019 Chieftain Limited Dark Walnut, 2019 Chieftain Limited Ruby Metallic, 2019 Chieftain Limited Thunder Black Pearl, 2019 Chieftain Steel Gray, 2019 Roadmaster, 2019 Roadmaster Burgundy Metallic, 2019 Roadmaster Elite, 2019 Roadmaster Limited Pearl White/Star Silver, 2019 Roadmaster Limited Polished Bronze/Thunder Black, 2019 Roadmaster Limited Steel Gray Smoke/Thunder Black Smoke, 2019 Roadmaster Thunder Black, 2019 Springfield Dark Horse Thunder Black Smoke, 2019 Springfield Dark Horse White Smoke, 2019 Springfield Metallic Jade/Thunder Black, 2019 Springfield Steel Gray/Burgundy Metallic, 2019 Springfield Thunder Black
