Change “Related Products” Title

Hi,
To center the “related products” title and increase the font, Please try this code in the General Styling > Quick CSS field or in the WordPress > Customize > Additional CSS field:

.related.products {
    text-align: center !important; 
}
.related.products > h2 {
    font-size: 22px !important;
}

please adjust to suit, Then clear your browser cache and any cache plugin, and check.

To change the related products text, Try adding this code to the end of your functions.php file in Appearance > Editor:

function custom_related_products(){
  ?>
  <script>
(function($){
  $(document).ready(function(){
  $('.related.products h2').each(function() {
    var text = $(this).text();
    $(this).text(text.replace('Related products', 'Awesome Deals')); 
});
});
})(jQuery);
</script>
<?php
}
add_action('wp_footer', 'custom_related_products');

Please adjust “Awesome Deals” to suit. Also note that with this text replace, case does matter, see ‘Related products’

Best regards,
Mike