i currently picked up a 99 integra gsr
long story short it was built for track and race and weight has been taking out, sunroof back seats all pulleys and heater and bags.

pretty much i'm trying to put back the heat in the car to balance the freezing weather in the morning and also defrost is nice
i have the blower and heater core and i think there is a piece missing inbetween both parts. just wanted to know if any one has done this themselves or know where i can get this done; knowing that is a pain and waste of weight but i rather get it back if possible

thanks for the read