However for short bursts at stop lights and signs a larger CCA battery will be just enough...Go find all my posts on this and you will see you are repeating what I say to people who ask why their vehicles with aftermarket electrical accessories are chewing their batteries up.
deadduck asked about the CCA of the different vehicles. I'm explain that there is no reason at all for the stock Tow Package to have a larger CCA than all the others. All Titans have the same engines and components that energize during starting.
Now when you get into aftermarket accessories that is where people are overtaxing the system an no matter what the CCA is of the battery it won't help. Neither will the stock Alternator if the accessories are pulling more juice off the battery than the alternator is replenishing while also keeping all the electronics alive.