diff --git a/jdaviz/configs/mosviz/plugins/viewers.py b/jdaviz/configs/mosviz/plugins/viewers.py
index 29f3d78c50..1686848c95 100644
--- a/jdaviz/configs/mosviz/plugins/viewers.py
+++ b/jdaviz/configs/mosviz/plugins/viewers.py
@@ -203,11 +203,6 @@ def on_mouse_or_key_event(self, data):
                 attribute = active_layer.attribute
                 value = image.get_data(attribute)[int(round(y)), int(round(x))]
                 unit = image.get_component(attribute).units
-
-                # Works around https://github.com/spacetelescope/jdaviz/issues/1625
-                if not unit:
-                    unit = image.meta.get('BUNIT', '')
-
                 self.label_mouseover.value = f'{value:+10.5e} {unit}'
             else:
                 self.label_mouseover.value = ''
diff --git a/jdaviz/configs/specviz/plugins/viewers.py b/jdaviz/configs/specviz/plugins/viewers.py
index fe4123a003..c3ea5ad570 100644
--- a/jdaviz/configs/specviz/plugins/viewers.py
+++ b/jdaviz/configs/specviz/plugins/viewers.py
@@ -491,12 +491,6 @@ def set_plot_axes(self):
         # flux_unit_type = data.flux.unit.physical_type.title()
         flux_unit_type = "Flux density"
 
-        # Works around https://github.com/spacetelescope/jdaviz/issues/1625
-        flux_unit_str = data.flux.unit.to_string()
-        if ((not flux_unit_str) or
-                (self.jdaviz_app.config == 'specviz2d' and flux_unit_str == 'DN')):
-            flux_unit_str = data.meta.get('BUNIT', '')
-
         if data.spectral_axis.unit.is_equivalent(u.m):
             spectral_axis_unit_type = "Wavelength"
         elif data.spectral_axis.unit.is_equivalent(u.pixel):
@@ -504,7 +498,7 @@ def set_plot_axes(self):
 
         label_0 = f"{spectral_axis_unit_type} [{data.spectral_axis.unit.to_string()}]"
         self.figure.axes[0].label = label_0
-        self.figure.axes[1].label = f"{flux_unit_type} [{flux_unit_str}]"
+        self.figure.axes[1].label = f"{flux_unit_type} [{data.flux.unit.to_string()}]"
 
         # Make it so y axis label is not covering tick numbers.
         self.figure.axes[1].label_offset = "-50"
diff --git a/jdaviz/configs/specviz2d/plugins/parsers.py b/jdaviz/configs/specviz2d/plugins/parsers.py
index bc6083e243..df99a7fcfc 100644
--- a/jdaviz/configs/specviz2d/plugins/parsers.py
+++ b/jdaviz/configs/specviz2d/plugins/parsers.py
@@ -52,7 +52,8 @@ def spec2d_1d_parser(app, data_obj, data_label=None, show_in_viewer=True):
 
         if "WAVEND" in header and "WAVSTART" in header:
             step = (header["WAVEND"] - header["WAVSTART"]) / flux.size
-            spectral_axis = (np.arange(header["WAVSTART"], header["WAVEND"], step) * u.m).to(u.micron)  # noqa: E501
+            spectral_axis = np.arange(header["WAVSTART"], header["WAVEND"],
+                                      step) * u.m
         else:
             # u.Unit("m") is used if WAVEND and WAVSTART are present so
             # we use it here as well, even though the actual unit is pixels
diff --git a/jdaviz/configs/specviz2d/plugins/spectral_extraction/spectral_extraction.py b/jdaviz/configs/specviz2d/plugins/spectral_extraction/spectral_extraction.py
index 06b2f235ce..0047363e30 100644
--- a/jdaviz/configs/specviz2d/plugins/spectral_extraction/spectral_extraction.py
+++ b/jdaviz/configs/specviz2d/plugins/spectral_extraction/spectral_extraction.py
@@ -644,7 +644,9 @@ def export_extract(self, **kwargs):
             self.update_marks(step='ext')
 
         trace = self._get_ext_trace()
-        inp_sp2d = self._get_ext_input_spectrum()
+
+        # FIXME: Passing in Quantity turns MJy into MJy2. But not passing it in gives DN.
+        inp_sp2d = self._get_ext_input_spectrum().flux
 
         if self.ext_type_selected == 'Boxcar':
             ext = extract.BoxcarExtract(inp_sp2d.data, trace, width=self.ext_width)
@@ -679,10 +681,6 @@ def export_extract_spectrum(self, add_data=False, **kwargs):
 
         # spectrum = Spectrum1D(spectral_axis=inp_sp2d.spectral_axis, flux=spectrum.flux)
 
-        # We preserve some original metadata, as needed.
-        for key in ('BUNIT', ):
-            spectrum.meta[key] = self.trace_dataset.selected_obj.meta[key]
-
         if add_data:
             self.ext_add_results.add_results_from_plugin(spectrum, replace=False)