Cat shop have the 501 damper set....$320, plus u need to buy the carbon plastic parts top and bottom at $40
Work out $360...........
DF03 set........$320.
3 racing ..........$180, Same function.... ...
It is possible to use the Kyosho buggy damper ? I find that the dampers of my vintage turbo optima is still in excellent condition without any sign of oil leakage after ~20 years.
P.S. Bro Evo5 also installed this type of vintage kyosho damper in his DF03.