HKS Hi-Power Muffler Carback Exhaust 2015 WRX / STi
Small diameter bullet type silencer with titanium colored tips make projects a sporty image.
The back pressure is reduced with φ 75->Φ60x2 large diameter pipe layout.
Simple full straight structure tends to generate uncomfortable low frequency exhaust resonance. HKS analyzed the frequency and found that using the resonance pipe can eliminate the unwanted sound. Enjoy the sound from the horizontally opposed engine.