HKS 31019-AT005 Silent Hi-Power Type-H Exhaust System

The HKS Hi-Power Silent Type-H Exhaust System is engineered from decades of endurance and GT racing experience in Japan. Designed for both turbocharged and naturally aspirated applications, the Hi-Power system features a race-inspired offset muffler and piping layout that maximizes exhaust flow while remaining street-legal and daily-driver friendly.

The system's less-restrictive design eliminates unnecessary bends, creating a straighter, more efficient exhaust path. For turbocharged vehicles, the large-diameter, smooth-flowing design increases exhaust velocity for improved mid-range boost response and high-RPM power gains. Naturally aspirated engines also benefit from increased exhaust flow capacity, particularly as engine tuning levels rise.

The Silent Hi-Power Type-H variant includes a built-in inner silencer integrated directly into the muffler body, delivering a refined exhaust note that is more subdued than the standard Hi-Power while retaining performance advantages. All muffler and tip assemblies are constructed from SUS304 stainless steel for long-lasting corrosion resistance and durability.

Key Features:

• Race-inspired offset muffler and piping design for maximum exhaust flow
• Engineered for both turbocharged and naturally aspirated engines
• Eliminates unnecessary bends for a straighter, less restrictive exhaust path
• Built-in inner silencer for a refined, street-appropriate exhaust note (Type-H)
• Improved mid-range boost response and high-RPM power for turbocharged applications
• SUS304 stainless steel muffler and tip construction
• Inspired by HKS endurance and GT racing programs in Japan

The HKS Hi-Power Silent Type-H is a premium bolt-on exhaust upgrade for enthusiasts seeking measurable performance gains with a civilized daily-driving character.