SOLR + Search API allows you to: 1. Install SOLR for search functionality and configure the SOLR core and Drupal modules for integration. 2. Create a SOLR core dedicated for Drupal, download configuration files from Search API SOLR, and restart jetty. 3. Set up the Drupal side by enabling relevant modules like Search API, Search API SOLR and Facet API. Create a SOLR server, search index and view to connect them.