got 2 types here. 1 is blue cables with black heads (RM100 - RM150 for 2nd's). Another is blue cables with blue head (Usually RM150-200 for 2nd's). The later is the better one. Old cable can cause kick back ooo... causing distributor to 'kong' faster.....
but best is spoons or nology (the ones which have individual groundings). These cables also store charge until max to provide maximum and consistent powerful flow of charge... woohoo... but blurdy expensive...
My wira 4g93t with evo3 air flow sensor, td05 turbo, 510cc, evo3 rechip ecu for 2 bar, afr, 255l fuel pump. All inside/outside upgraded. Run smoothly for a year. I set max for 1.2 bar boost only. Last 3 days ago...