Go to google and type this in nitro evader ST hop ups there you will find link to hopups. Also check dads website in Wapak www.dadstoyshop.com also the one we went to get my fuel should have parts. Don't worry about the crystals I've got an extra set around the house. If they don't work I'll pick some up. Oh and one more thing get ready to get spanked. My Savage is not only gonna spank ya but then I'm gonna run ya over. [X(]