ok I read that if i re route the coolant hose threw my throttle body I get colder air going in seing as its just there for nothern cars so the throtle body dont freeze up in the cold.

In any case I was looking at itand there are too hoses that go in to the throtle body (by the way my car is a 99 civic DX with EX motor swap) and the throtle body is pointed up one hose is above the other.

1st question: what should i use to plug the holes after diconnecting the hoses?

2nd question when re routing is it the bottom one that I have to direct?