for us to properly build these and stand behind our work (we warranty everything we make for 3 years!) that is where we ended up pricewise. we are not a fly by night outfit finding the cheapest **** we can get our hands on. the price accounts for the exchanger itself, the work to properly undo the radiator necks, custom form in the block off plates, make the brackets, make the inlets and outlets and properly bead the ends. include the drain bung/petcock. TIG welding, and spending an hour pressure testing each cooler fixing the "summit supplied" leaks in the cooler. including all the hoses/clamps/new powersteering cooling line kit/ect and being able to provide customer support on the product instead of a taillight warranty.