Anyone know how to DIY a spring stiffener? It is used in between the spring to make it more stiff... to improve braking and handling. I know splitfire is selling but too ex.... around S$80/pair.
currently,i'm using gsr 4g93t. all stock except 2.5'' exhaust piping. i'm planning either upgrade to evo or modified my current 4g93t. now, i have rm 4000 extra in hand and there is my friend who want to buy my 4g93t...