Mod to improve the feel of the Thrustmaster TH8 shifter

Selling a well-known mod to improve the feel of the Thrustmaster TH8 shifter. The lever really transmits the shift between the center position and the others. Never been installed. It is possible to make the shifter more or less stiff, adjustable to personal preference. This part fits on top of the shifter, only requiring removal of the upper cover. I can hand deliver in the Rio Tinto/Valongo area. I also ship via registered CTT, with shipping costs paid in advance by the buyer.