Our search engine ain't the best, so maybe I shouldn't have been too harsh on OP, but the info is all over the place here.
Tip: If you want to find things faster, use Google search engine. Begin the search with the term "mazdas247" and then whatever you are looking for. That will direct the search to our forum.
For instance, if you typed in Google the following: "mazdas247 one step colder denso" (without the parenthesis) you would get an absolute ton of information under the very first listing and all the threads under it.