You release the fuel pressure first. I think you can do it by tripping the safty cut-off behind the passenger kick panal or you can take a fuel pressure tester and bleed it off at the valve under the hood. Then you will need the fitting tool to release the clips.
There is a tool you have to buy to release the filter.
It inserts into each end and then you pull the lines off. Your parts store should be able to help you.