the 4 wire.red for ignition +12v,orange for +12v battery,black for grounding and white for tacho input. The 2 wire socket for shifting light.Becoz it using led type be sure you connect this 2 wire correctly.Otherwise it won't light....
sorry for the mistake.......
to guys who has wastegate install in their cars . wat will happen if the vacuum hose to the wastegate is popped out , meaning leak or come out ? will ur boost gauge still be able to read the boost ? coz i was...