IAG 1st - 6th Carbon Synchro Set for Late 2006-07 STI, 07-09 LGT Spec B 6-Speed

Forceful driving and aggressive shifting can wear down or harm synchros, potentially resulting in gear grinding or even damage to the transmission housing. The IAG Carbon Synchro Set is a great solution and an essential upgrade if you are rebuilding or upgrading the gearing in your Late 2006-2007 STI or 2007-2009 Legacy GT Spec B transmission. IAG’s Synchro Gear Set will give you smoother shifting and improved reliability.