My mechanic has everything wired except he is trying to figure out how to connect these switchs. In the wiring diagram it shows that the switch does sometype of voltage drop. Does anybody know for what purpose. I know people aren't hooking it up,and run fine. But what is the purpose of it,it's there for reason. My mechanic thinks maybe it lowers the boost in the first two gears,cause those gears are so short and go so fast,and by not hooking that switch up, that maybe my car would be tricked in thinking it's in third. Anybody ! And if you could tell me how to wire it. Auto harness and manual Comp.