What is the top speed of a 2009 arctic cat 550 efi?

The 2009 Arctic Cat 550 EFI has a top speed of around 75-80 miles per hour (mph) under optimal conditions. This speed can vary based on factors such as rider weight, terrain, and maintenance of the snowmobile. The 550 EFI is known for its balance of performance and efficiency, making it suitable for various riding styles.