The flagship model with HKS exhaust technology. Full independent layout of both right and left banks of V type engines. Full dual layout without 2-1 junction portion like stock exhaust system. Without performance drop due to the exhaust interference, it enables stress free revolution up to high rpm range. *Full Dual layout* Full independent layout of both right and left banks of V type engines. The full dual layout prevents performance drop due to the exhaust interference. It enhances performance at high rpm. *Balance pipe* Balance pipe controls exhaust gas pulsation for exhaust sound stability and increasing torque at low rpm. *About 13% lighter* Full Dual muffler weighs about 26kg compared to stock muffler about 30kg. It is about 13% lighter. *SUS304 and titanium* The material of pipe and silencer is SUS304 with titanium tip. This combination improves durability and appearance. See our other items