Just got an Injen CAI with the heat/water shield. I'm fine with the install of the CAIwhich way does the heat shield go . Common sense would say that the open end should face the engine to block any heat/water coming through the radiator/front of car. Any thoughts. Thanks for the help.

 

no.
heat shield goes towards the engine
air coming from radiator is FAR cooler then the air coming off the engine

 

The open end of the shield towards the front of the car? What about rain and the heat form the radiator?