The Infinity is a glass boat and like most of it out there is from China as far as I know. Mine has good hardware, was put together right. They have a reputation for splitting the seam between top and bottom but you have to crash it pretty hard. It runs about 40 mph. I've had a problem getting to full power but have determined that it is in fact a battery problem and not something wrong with the boat, specifically not the esc which is where I first thought there was a problem. One or two others have experienced the same issue. You can do some upgrades like the prop and get some more speed. At least one person has gotten it up to 51 mph and says it gets pretty hard to control. For its size I don't doubt it. I like mine, will keep it. If I were in the market for one this size I would seriously consider buying it again. There are a couple of long threads here and on RCG about it and several videos. As for parts I don't know about factory stuff but you can replace everything inside it easily and make it faster. I think it's a winner.

Rick H.