What did you lxpro'ers use to take out the cone? Apparently its harder than normal steel so its a fooking knightmare
dremel with a meidum circumference, diamond reinforced, cutting disc, theres 2 tac welds - cut these apart and out comes the restrictor
I just ground through the 2 welds with a carbide cutter in an electric drill!! And then smoothed it all off with a rotary grind stone