The HKS Silent Hi-Power catback exhaust system is a must for building your high performance 2005-2009 Legacy GT. The Hi-Power exhaust series from HKS offers greater flow and higher-RPM power gains by eliminating unnecessary bends in the exhaust piping. The Legacy GT version of the Hi-Power dual exhaust features 60mm pipe diameter and an integrated silencer built in to each muffler for that stealthy growl. The twin polished stainless 120mm muffler tips give an extremely menacing look to your Legacy and will be sure to turn heads wherever you go.