You can use your Search Head Cluster Deployer to get an app with all those settings to be deployed in you members.
Create a fresh empty app, put the the new outputs.conf in the app, put the app in $SPLUNK_HOME/etc/shcluster. Then in the Deployer use the command:
splunk apply shcluster-bundle
Remember that if you set those outputs.conf in system local, you will need to erase them as they will have maximum precedence over the new ones, and that is one reason why system/local shouldn't be used.