I installed automatic thread tagging. This should allow users to find relevant information quicker as it allows another way to search. For example, searching for the "N54" tag should bring up all n54 related material.

You can access tags here: http://www.bimmerboost.com/tags.php or just click on the tag that shows in the bottom of the thread.

You can also use the tag cloud on the page. I'm hoping this helps users find relevant information faster.