The banjo bolts on the filter shouldn't be too tight because the recommended torque is like 15-20 ft/lbs. But, the banjo bolts, for some reason, are usually hard to loosen. And use some care, so you don't kink that plastic fuel line... Ron
You will likely need a lot of leverage to loosen the banjo bolts;that is, wrenches with very long handles. You will need one wrench to hold the filter and another to turn the nut on the banjo. I think the wrench sizes are different at the two ends. The filter is free to wiggle about while you are doing this, so if you can figure a way to confine the filter and hold it in place the job will be much easier.