"Mid-grade pricing for a low-quality product with a VERY short 'lifetime' warrenty.
Unfortunately CSF's "Lifetime Warranty" is often fake. CSF has many obstacles that block getting a replacement radiator. All of CSF's warranty obstacles are likely in place because of the low quality of their products.
Unless the radiator fails within a few months after installation, the lifetime warranty probably will not be honored. Even if the radiator does fail quickly, you still may not get a replacement because:
the radiator was subjected to 'overheating'
'improper' installation
neglected maintenance
...
The low product quality and warranty problems are why many radiator suppliers who are in this business for the long term no longer carry CSF radiators. Hopefully CSF will someday wake up and smell their leaks, but I learned this has been going on for so long that restoration won't be easy.
"