WebSub (FKA. PubSubHubbub)
A better way to tell the world when your blog is updated.
Disables all RSS/Atom/RDF feeds on your WordPress site.
RSS Filter plugin .You have option to customization your WordPress RSS feed items.
Syndicate Press lets you include RSS, RDF or Atom feeds directly in your Wordpress posts, pages, widgets or theme.
This plugin will remove comments feed links from header, output only posts feed.
Simple plugin to fetch a desired RSS and put it wherever you want in your blog.
Improve the performance of your site by serving your feeds as static (XML) files.