Recieved my leakdown tester and couldnt have been a day sooner. You cant go ride with out one and trust your leak free. I make most my own stuff but at $35 shipped i couldnt make one much cheaper, so saving aggrevation sometimes you just gotta sit back and let the pros do it for you. He asked me what size carb i have because he offers 2 intake sizes, also got an exhaust plug. It was tested before sending and he has detail instructions available. He has a great reputation and i found out first hand he owns up to it. If your unsure what you need he will be sure to help you, not take coin n run.