Yes, it is external just in front of the passenger side rear wheel hidden by a black plastic cover ( 3 10 mm bolts ).
You will need a long extension for the rear bolt.
Expect some gasoline leakage, I advise have everything in place and work as fast as possible. ( don't smoke )
If the pump / filter is OEM, there will be clasp-type hose clamps, they can be released with a small screwdriver or a strong pointed awl.
Most go back with screw type clamps, it is also not a bad idea to replace the old hoses at the same time.
If you were planning on just replacing the pump, I'd advise you also do a new filter at the same time.