All you people who own a Thunderace and plan on getting an end-can don't go for a Scorpion. My dad bought one for his and it takes about an hour to really start getting loud. He had the same one on his Bandit 600 and it sounded mint but it's crap on his Thunderace. He is getting a Carbon Art Can on his next bike, a GSX-R 1000. I can't wait, there mint!