a standard spark plug should last 10-20K KM...those better/performance type should last 30-50KM....
Spark plug is wear and tear part...
Also life span of spark plug depend on your engine condition...if your engine makan engine oil / wrong tuning then your spark plug will wear out faster.
currently im using gsr intercooler with stainless steel piping
i wanna upgrade to vr4 intercooler with piping
wonder how much would it cost?
and how long it can be completed?
any shop to recommend?