What does this service cost? I have a large radiator shop in my town which is good because I can circumvent shipping cost and damages. He couldn't give me a quote over the phone because I had no idea how to answer his questions as far as size and brackets etc until I take the old one out. They can get it done within 48 hours of me dropping it off. What is the average price to get this done? Are there any pointers I need to be aware of? He said I can have 2 cores high performance which is like 3 cores, or I can have 3 cores, or 4 cores. I don't know the difference. Thank you.