My analysis of this product showed that it is a great addition to my car's engine cooling system .The design and build of the thermostat housing are top-notch ensuring that it fits perfectly onto my vehicle. The installation process was smooth, and the product has been working flawlessly ever since. The efficiency and maintenance-free nature surpasses my expectations, and the price is reasonable. The only con I can mention is that the installation instructions could HAVE been more detailed. overall, I am very satisfied with this product!