No, I made it in two pieces so that way if I wanted too I could take off the extension and just use the knob. I didn't have a M12x1.25 tap ether but a 1/2-20 tap works just as well.I attempted to make one similar to that but a lack of proper taps and time ended up in a no go. All one piece?
no, it was done by the previous owner. I might end up removing it.Nicely done man! Props for making your own.
Also, did you wrap your interior with carbon fiber?