The coolant tube that runs in the valley below the intake needs to be replaced because the pi intake is deeper or something.

My question: Does this tube just supply the heater core? If so could I just plug it up since the car sits in my garage from November to April so I never use the heater.

 

it does only feed the heater core but it would only make sense to replace it. its not that expensive

 

yea replace it about 35 bucks if you do it do it right