Koyo's Aluminum aftermart radiator is over twice the thickness of the small plastic OEM radiator. This upgraded radiator is not prone to cracking like the factory radiator and can hold much more coolant to provide better cooling to your 3rd gen. An upgraded aluminum radiator is one of the manditory reliability upgrades for a FD owner who plans on enjoying thier FD. This radiator is not recommended for those still using the stock intake box or aftermarket intake box.