Aftermarket exhausts for motorcycles can have both advantages and disadvantages. Whether they are "bad" or not depends on various factors, including personal preferences, legal requirements, and the specific aftermarket exhaust system chosen. Here are some points to consider:
Advantages of Aftermarket Exhausts:
Performance Enhancement: Some aftermarket exhaust systems are designed to improve a motorcycle's performance by reducing weight and increasing exhaust flow. This can lead to increased horsepower, torque, and throttle response, providing a more exhilarating riding experience.
Enhanced Sound: Many riders appreciate the deeper, louder, and more aggressive sound that aftermarket exhausts can provide. This can add to the overall enjoyment and character of the motorcycle.
Aesthetic Customization: Aftermarket exhausts come in various designs, finishes, and shapes, allowing riders to personalize the look of their motorcycles. This customization can enhance the overall appearance and style of the bike.
Disadvantages and Considerations:
Noise Levels: Some aftermarket exhausts can produce significantly louder noise levels than stock exhausts. This can be a concern in areas where noise regulations are strictly enforced, potentially leading to legal issues or restrictions on riding in certain locations.
Emissions Compliance: Depending on the jurisdiction, aftermarket exhaust systems may not comply with emissions regulations. This can result in a motorcycle failing emissions tests or being non-compliant with local laws. It's important to verify the legality of aftermarket exhausts in your region.
Tuning Requirements: When installing an aftermarket exhaust, the motorcycle's fueling and engine management system may need to be tuned or adjusted to optimize performance and ensure proper air-fuel mixture. This could involve additional costs and potentially void warranties if not done correctly.
Potential Loss of Low-End Torque: Some aftermarket exhausts may prioritize high-end performance, sacrificing low-end torque. This can affect the bike's performance in certain riding conditions, such as stop-and-go traffic or low-speed maneuvers.
Quality and Fitment: The quality and fitment of aftermarket exhaust systems can vary. It's important to choose reputable brands and ensure proper installation to avoid issues like exhaust leaks or premature wear.
Ultimately, the decision to install an aftermarket exhaust should consider personal preferences, local regulations, and the intended use of the motorcycle. It's advisable to research and choose a well-regarded exhaust system, follow the manufacturer's instructions, and consult with experienced riders or professionals to make an informed decision.