Main Piping Diamter: 75mm to 60mm x 2
Tip Outer Diameter: Dual 97mm
HKS Sound Rating: 88dB (@Idling: 67dB) compared to OEM Exhaust Sound Rating: 82dB (@Idling: 58dB)
Overwhelming Low Exhaust Pressure - 50 percent of Original Pressure:
75mm large diameter pipe and full straight structure reduce the exhaust pressure to 50 percent of the stock exhaust. This significant exhaust pressure reduction enables the turbine to run smoothly from low RPM range, which results in the engine output increase in an entire speed range. Also, this pressure reduction effect is enhanced as the tuning level becomes more advanced; the engine output can be increased to 540ps without engine power-loss.