diff --git a/hgext/narrow/narrowcommands.py b/hgext/narrow/narrowcommands.py
--- a/hgext/narrow/narrowcommands.py
+++ b/hgext/narrow/narrowcommands.py
@@ -290,9 +290,21 @@
             with ds.parentchange():
                 ds.setparents(p1, p2)
         else:
-            with wrappedextraprepare,\
-                 repo.ui.configoverride(overrides, 'widen'):
-                exchange.pull(repo, remote, heads=common)
+            with repo.transaction('widening') as tr,\
+                 remote.commandexecutor() as e:
+                known = []
+                cg = e.callcommand('narrow_widen', {
+                    'oldincludes': oldincludes,
+                    'oldexcludes': oldexcludes,
+                    'newincludes': newincludes,
+                    'newexcludes': newexcludes,
+                    'cgversion': '03',
+                    'common': common,
+                    'known': known,
+                }).result()
+
+                with repo.ui.configoverride(overrides, 'widen'):
+                    ret = cg.apply(repo, tr, 'narrow_widen', remote.url())
 
         repo.setnewnarrowpats()
         actions = {k: [] for k in 'a am f g cd dc r dm dg m e k p pr'.split()}
diff --git a/hgext/narrow/narrowwirepeer.py b/hgext/narrow/narrowwirepeer.py
--- a/hgext/narrow/narrowwirepeer.py
+++ b/hgext/narrow/narrowwirepeer.py
@@ -8,14 +8,23 @@
 from __future__ import absolute_import
 
 from mercurial import (
+    changegroup,
     extensions,
     hg,
+    match as matchmod,
+    narrowspec,
+    util,
     wireprotoserver,
+    wireprototypes,
+    wireprotov1peer,
     wireprotov1server,
 )
 
+from . import narrowbundle2
+
 def uisetup():
     extensions.wrapfunction(wireprotov1server, '_capabilities', addnarrowcap)
+    wireprotov1peer.wirepeer.narrow_widen = peernarrowwiden
 
 def addnarrowcap(orig, repo, proto):
     """add the narrow capability to the server"""
@@ -37,3 +46,44 @@
             return orig(cmd, *args, **kwargs)
         extensions.wrapfunction(peer, '_calltwowaystream', wrapped)
     hg.wirepeersetupfuncs.append(wirereposetup)
+
+@wireprotov1server.wireprotocommand('narrow_widen', '*', permission='pull')
+def narrow_widen(repo, proto, args):
+    """wireprotocol command to send data when a narrow clone is widen. We will
+    be sending a changegroup here.
+
+    The current set of arguments which are required:
+    oldincludes: the old includes of the narrow copy
+    oldexcludes: the old excludes of the narrow copy
+    newincludes: the new includes of the narrow copy
+    newexcludes: the new excludes of the narrow copy
+    common: set of nodes which are common between the server and client
+    cgversion(maybe): the changegroup version to produce
+    known: set of nodes which are known on the client (used in ellipses cases)
+    """
+
+    oldincludes = wireprototypes.decodelist(args.get('oldincludes'))
+    newincludes = wireprototypes.decodelist(args.get('newincludes'))
+    oldexcludes = wireprototypes.decodelist(args.get('oldexcludes'))
+    newexcludes = wireprototypes.decodelist(args.get('newexcludes'))
+    common = wireprototypes.decodelist(args.get('common'))
+    cgversion = args.get('cgversion')
+    newmatch = narrowspec.match(repo.root, include=newincludes,
+                                exclude=newexcludes)
+    oldmatch = narrowspec.match(repo.root, include=oldincludes,
+                                exclude=oldexcludes)
+    diffmatch = matchmod.differencematcher(newmatch, oldmatch)
+
+    # get changegroup data
+    cg = narrowbundle2.widen_changegroup(repo, diffmatch, common, cgversion)
+    cg = changegroup.cg3unpacker(util.chunkbuffer(cg), None)
+    gen = iter(lambda: cg.read(32768), '')
+    return wireprototypes.streamres(gen=gen)
+
+def peernarrowwiden(remote, **kwargs):
+    for ch in ('oldincludes', 'newincludes', 'oldexcludes', 'newexcludes',
+               'common', 'known'):
+        kwargs[ch] = wireprototypes.encodelist(kwargs[ch])
+
+    f = remote._callcompressable('narrow_widen', **kwargs)
+    return changegroup.cg3unpacker(f, None)
diff --git a/tests/test-narrow-widen-no-ellipsis.t b/tests/test-narrow-widen-no-ellipsis.t
--- a/tests/test-narrow-widen-no-ellipsis.t
+++ b/tests/test-narrow-widen-no-ellipsis.t
@@ -104,23 +104,13 @@
   sending batch command
   searching for changes
   all local heads known remotely
-  no changes found
-  sending getbundle command
-  bundle2-input-bundle: with-transaction
-  bundle2-input-part: "changegroup" (params: * mandatory) supported (glob)
+  sending narrow_widen command
   adding changesets
   adding manifests
   adding widest/ revisions (tree !)
   adding file changes
-  adding widest/f revisions (tree !)
+  adding widest/f revisions
   added 0 changesets with 1 changes to 1 files
-  bundle2-input-part: total payload size * (glob)
-  bundle2-input-part: "listkeys" (params: 1 mandatory) supported
-  bundle2-input-part: "phase-heads" supported
-  bundle2-input-part: total payload size 24
-  bundle2-input-bundle: 2 parts total
-  checking for updated bookmarks
-  3 local changesets published
    widest/f: add from widened narrow clone -> g
   getting widest/f
   $ hg tracked
@@ -143,6 +133,7 @@
   adding file changes
   added 5 changesets with 4 changes to 2 files
   new changesets *:* (glob)
+  3 local changesets published
   (run 'hg update' to get a working copy)
   $ hg update -r 'desc("add wider")'
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
@@ -179,12 +170,10 @@
   $ hg tracked --addinclude wider
   comparing with ssh://user@dummy/master
   searching for changes
-  no changes found
   adding changesets
   adding manifests
   adding file changes
   added 0 changesets with 1 changes to 1 files
-  5 local changesets published
   $ hg tracked
   I path:inside
   I path:wider
@@ -284,12 +273,10 @@
   $ hg tracked --addinclude d1
   comparing with ssh://user@dummy/upstream
   searching for changes
-  no changes found
   adding changesets
   adding manifests
   adding file changes
   added 0 changesets with 1 changes to 1 files
-  11 local changesets published
   $ hg tracked
   I path:d0
   I path:d1
@@ -376,12 +363,10 @@
   $ hg --config hooks.pretxnchangegroup.bad=false tracked --addinclude d1
   comparing with ssh://user@dummy/upstream
   searching for changes
-  no changes found
   adding changesets
   adding manifests
   adding file changes
   added 0 changesets with 1 changes to 1 files
-  11 local changesets published
   $ hg log -T "{if(ellipsis, '...')}{rev}: {desc}\n"
   11: local
   10: add d10/f