I think they are $75 bucks. And work very well in most cases. But in my case, it seems that extra cubes from a stroker, a huge front mount, an AC system that works very well with a parallel flow condensor that exchanges a lot of heat, and south TX temps seem to be to much for it. That is why I'm putting a rad in from Redc5. I put one in a car and it stayed in the 170's dyno'ing all day in a shop that was near 100 degree with high Houson humidity. after a pull it dropped right back down to 165. And this was with both coolers being run through it.