Most were talking about tundras that has a good stock air box. I have no idea about a Titan. More concern that an airbox swap, is if it's an aftermarket filter itself, you need to maintain and clean many of the oiled filter types, if it can still take stock paper filter that's the best for longevity if you arn't trying to obtain "sick gains" of 2 hp via a high flow race filter that means it lets more shit thru.