Should I Get Airbags in my 2013 Tacoma 4x4 SR5?

I have a 2013 DC 4x4 v6 w/Towing Package. I'm planning to tow a travel trailer that when loaded will approach the max tongue weight. I'm already planning to use a WDH and sway bars.

I've read Tacomas tend to sag in the back when any decent amount of weight is put on.. But all of those posts are from years ago. Are the 2013 springs any better than the older Tacomas, or would I benefit greatly from putting on some Firestone Airbags?

Thanks,
Dan

 

I don't believe the new springs are any better. If I were you, I'd take it in and get the leaf spring TSB done. (Though I can't confirm if they didn't fix them in '13)