I bought a set of TSportline 20" Matte Black wheels for my X and love the look BUT there is one thing I forgot to take into account which is the lack of support from Tesla Service Center. I am experiencing a vibration in the steering wheel at about 75 mph and the Service Center said they are not allowed to fix it. I went back to stock 20" wheels and the vibration is gone. I think I am going to stay with the stock setup for future ease of maintenance.
I am willing to sell the TSportline wheels and tires for a great price for someone willing to deal with the headache of getting the wheels balanced outside of Tesla Service Center. I must have spent about $3200 for the wheels (TSportline 20" Matte Black), tires (Michelin ContiSilent), TPMS (Tesla OEM) and TSportline black cap covers. All of them have about 3,000 miles and I am willing to let the whole package go for half price $1600 picked up in Tri-State area. I think this is a good deal for someone willing to do some work to get them balanced.