According to the mechanoc advice, I'm planning to purchase Ohlin (adjustable suspension) from a local performance store in Vorajak district, bangkok. The shocks come with adjustable spring and rest tank. This shock is used in Rally competition in Europe. The cost is estimated to be $800 per pair. I'm also searching for 1980's 15-inches Rial wheels around Bangkok. These rims fit perfectly to Fiat 131 Racing. I have purchased Brembo rotors with slotted holes for my Fiat. Two have been installed. Two more will be installed onto the rear wheels. I'm also searching for Brembo caliper, which is available in any Used performance stores in Bangna KM.12. This is a good thing about Thailand. There are so many used parts in excellent conditions available. Most of them fit Fiat perfectly, it does not need any modification. My fiat should be good and cool for now.
