HKS SILENT Hi-Power SF5/SG5/SG9 EJ20 Turbo | Subaru SF5/SG5/SG9 EJ20 Turbo (31019-AF024) HKS

Silent Hi-Power Muffler by HKS

Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path. For turbocharged applications, the large and smooth exhaust flow allows greater exhaust velocity for better mid-range boost response and high-RPM power. Naturally aspirated vehicles also benefit from greater exhaust flow capacity as engine tuning levels increase. Certain applications are available in a Silent Hi-Power version which has an inner silencer built into the muffler. Like Dragger Exhaust systems, Hi-Power Exhaust systems are made from SUS304 stainless steel muffler and tip assemblies.

Features

• Construction: SUS304
• Diameter of Center Pipe: 75mm
• Diameter of Tip: 120 mm
• Clearance: 160 mm
• Close Noise level: 80

Benefits

• The material is SUS304 for improvement of appearance and durability
• Proven “Advantex* glass wool” (Continuous fiber glass wool)
• Hollow hook and pressed flange for some vehicles to reduce weight
• Redesigned inner structure of silencer to improve performance and appearance

Applications

• 2004 – 2008 Subaru Forester

What’s In The Box?

• 1 – Silent Hi-Power Muffler

Warranty

• Manufacturers Standard Warranty