Aside from just making sure the part is installed properly, you also need to make sure that the right coolant is used for your CSF product. Since they offer both copper and aluminum cores, each one requires a different type of coolant. If you happen to use the wrong coolant in your CSF radiator, it can cause damage to the internals in which the warranty will not cover.
If the CSF part you have has a copper-core, than you need to use GM 6038 or something equivalent to this. The core always determines what type of antifreeze coolant is used. For those who have the aluminum core from CSF need to use GM 6043 or something equivalent. Coolant prevents against engine freeze-up and boil-overs, as well as anti-corrosion protection for the metal associated with your CSF component.
When you install your new CSF radiator, it is also important to completely flush the coolant and make sure there is nothing left. After it has all been flushed, it should be filled using the proper coolant with a 50/50 mix of distilled water. If you use the wrong coolant in your CSF product, things like corrosion, core leaks and other cooling system problems will occur.
The last thing you want if your brand new CSF part to crack or corrode from the wrong type of antifreeze coolant. As long as the right one is used, your CSF heat exchanger will last you a long time and be able to properly cool your engine. This will also void your CSF warranty and you will be stuck with an expensive auto part that you cannot use.