Fitting a Triumph Bobber exhaust onto a Royal Enfield Interceptor 650 would require modification and customization, as the two motorcycles are from different manufacturers and have different specifications. The exhaust system of a motorcycle is designed to fit specific models, taking into consideration factors such as engine configuration, mounting points, and exhaust routing.
To fit a Triumph Bobber exhaust on a Royal Enfield Interceptor 650, you would likely need to consult with a professional motorcycle mechanic or an aftermarket parts specialist. They would be able to assess the compatibility between the two exhaust systems, evaluate the necessary modifications, and potentially fabricate or adapt components to make the installation possible.
Keep in mind that modifying the exhaust system of a motorcycle can have legal implications and may affect the performance, emissions, and warranty of the motorcycle. It's important to research and understand the local regulations and consult with experts to ensure that any modifications comply with the law and are done safely and effectively.