Thunderstroke 116 Stage 3 Big Bore Kit

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 30% more horsepower and up to 18% more torque on Chief models*. 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.   Important Regulatory InformationThis item is only available for purchase and installation at your dealer. To find your dealer, click here. Material: Steel Ease Of Installation: Dealer Only Required Sold Separately: Stage 1 Exhaust and Stage 1 Air Intake Recommended With: Stage 1 Exhaust, Stage 1 Air Intake and Exhaust Tips Care And Cleaning: Please see your Indian Motorcycle® Riders Manual for specific cleaning and maintenance instructions. Warranty: 1 Year From Date of Purchase