HKS Hi-Power Exhaust Subaru WRX/STI 2002-2007 - Dirty Racing Products

HKS Hi-Power Exhaust Subaru WRX / STI 2002-2007


Regular price$514.00
Shipping calculated at checkout.

Snap Finance - Apply Here

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 Drager Exhaust systems, Hi-Power Exhaust systems are made from SUS304 stainless steel muffler and tip assemblies.

This exhaust system improves the performance by lifting the restrictions found in the OEM exhaust design.

  • Larger 3" piping diameter and smooth bends limit turbulence and restriction under acceleration
  • 304 stainless steel materials
  • Minimal bends in the design
  • Increase in both horsepower and torque
  • Improved throttle response
  • Reduced turbo lag
  • Deep tone under idle with an aggressive tone under acceleration
  • Exhaust hangers welded onto OEM locations
  • Includes new gaskets and hardware making this exhaust system ready for the installation

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.