i'm using tufoil on my b16a...no problem so far...it makes ur engine rev more smooth...FC not much different...use it when u change ur oil...i'm using 3.7-4 liter of castrol magnatec with 1/2 bottle of tufoil...
guys help me.. im using the headlight kit to 100/90w but the this is the bulbl goes upside down i mean when highbeam its low beam n low beam its high beam how to solve it?