When selecting a slip-on exhaust, there are several factors to consider:
Brand reputation: Look for well-established and reputable brands that have a track record of producing high-quality exhaust systems for motorcycles.
Material: Consider the materials used in the construction of the exhaust. Common options include stainless steel, carbon fiber, and titanium. Each material has its own advantages in terms of weight, durability, and aesthetics.
Sound: Determine the desired sound profile you want for your Duke 390. Different exhausts can produce various tones and volumes, ranging from deeper and throatier to higher-pitched and louder. You may want to listen to sound clips or watch videos to get an idea of how different exhausts sound on the Duke 390.
Performance: Some aftermarket exhausts may offer improved performance by reducing weight and increasing airflow. However, it's important to note that the impact on performance may vary depending on the specific exhaust system and your motorcycle's tuning.
Fitment and installation: Ensure that the slip-on exhaust you choose is specifically designed to fit the 2021 model Duke 390. Consider whether you prefer a direct bolt-on system or one that requires additional modifications for installation.
To find the best aftermarket slip-on exhaust for your Duke 390, it is recommended to consult online forums, motorcycle communities, and reviews from other Duke 390 owners. They can provide valuable insights and recommendations based on their personal experiences. Additionally, you can reach out to local motorcycle shops or dealerships that specialize in performance upgrades for further advice and options.