Damn when I do the exact search string I still get no hits.
That is including the " s
Search was set as
Maximum date range is 3 years.
Newer than 1 Week
Older than 3 Year(s)
Okay I just got 2 pages of links with 25 links per page for INTAKE on all forums and 1 year (you have 1 year set as a limit)
A search for "air+intake" for all forums and 1 year returned 7 hits for me.
Same results for "air intake"