Recommendation for Air Box Replacement: BMC OTA Universal code: ACOTA70/85L230-B sizes (mm): Ø1 : 82 | Ø2 : 85 | L : 295 http://www.bmcairfilters.com/eng/ota-oval-trumpet-airbox/acota70-85l230-b/812/art WRX/STI code: ACOTASP-04 http://www.bmcairfilters.com/eng/ota-oval-trumpet-airbox/acotasp-04/815/art
