RAMs from 2013 onward have 2 fuel filters. A 10 micron fuel/water separator. Then a 5/3 micron (2 filtering elements) engine filter that also separates water. Probably the best OEM setup of all the trucks right now with 2 water filtering membranes and 2 WIF sensors. Just changed mine today as well. The filters are about 110 to 120 dollars for both in a kit.
$326 for changing both fuel filters is highway robbery. Without even trying, I changed both filters within 1 hour. That's about $100 bucks in labor shop time, but I'd expect a pro to beat my time well handily. However, I know that dealerships like to charge almost $100 per filter as I tried to see if my dealer would try to match the price I buy my filters at online. Apparently they don't want to maximize their business due to having enough suckers around locally that pay the outrageous prices.