Like Stumagoo said, 0 ~5 psi is were our`s was bad and we do not have an air box as well, 2 pod`s this is what we used to fix the problem http://www.conceptzperformance.com/...Car_Type=300&UID=2013080315401960.228.196.200 goose honk killer kit , you do need a 4 " side grinder with 1mm cutting disc or hand saw but easy job ..Lloyd