Bypassing Drupal's htaccess rewrite for static page
Look at Drupal's .htaccess, lines 110 to 113:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^ index.php [L]


It means if you create directory "products", every static file that's there will be served and all the rest will be directed to Drupal. Simple as this. If it's not working for you, you need to provide more details or fill a bug report.