There is a Bowling Green Customs Intake for sale on Ebay.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=34202&item=4531664156&rd=1
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=34202&item=4531664156&rd=1