good day tsikoteers! i need to replace the front shocks of my besta, i've canvassed these:

kayaba fluid type 650 pesos *
kayaba gas type 900 pesos *
monroe fluid 650
monroe gas 800


which do you think will be best for the van?? i'm thinking of gas but worried about the ride becoming harsh....

btw, the vans front suspension system are Torsion bars..


tia!