Whether or not it is necessary to change the stock exhaust of a Royal Enfield bike is a matter of personal preference and specific requirements. Here are some factors to consider:
Sound: One common reason riders consider changing the stock exhaust is to enhance the sound of their motorcycle. Some riders prefer a deeper and more aggressive exhaust note, which aftermarket exhaust systems can provide. However, it's important to note that altering the exhaust system may impact the noise levels and local regulations regarding permissible sound limits.
Performance: Aftermarket exhaust systems can potentially improve the performance of a motorcycle by reducing weight and increasing exhaust flow. This may result in a slight power gain and improved throttle response. However, the difference in performance may not be significant enough to justify the expense for some riders.
Aesthetics: Some riders choose to change the stock exhaust for cosmetic reasons. Aftermarket exhaust systems often offer different designs, finishes, and customization options to suit individual preferences and enhance the overall look of the bike.
Legal considerations: It's essential to ensure that any modifications, including changing the exhaust system, comply with local laws and regulations. Some regions have specific restrictions on noise emissions, and using an aftermarket exhaust that exceeds the permissible limits can lead to legal issues or fines.
Before making any modifications, it's recommended to consult local laws and regulations, consider your priorities regarding sound, performance, and aesthetics, and assess whether the potential benefits outweigh the costs involved. Additionally, be aware that modifying the stock exhaust system may also impact the warranty coverage provided by the manufacturer.