FlyPro recently announced the release of the XJaguar, a FPV racing drone that comes in a kit you can build yourself. The challenge for most people attempting to build their own quadcopters is that many parts are incompatible with one another. The result is that sometimes you order all the parts that you need and then you have to return or replace certain things in order to get the drone to work properly. This is not the case with the XJaguar. The kit comes with parts that work very well together, and the result is an amazing FPV racer.
Check out the XJaguar from FlyPro here: https://goo.gl/l9x24n