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

Regular Price
Sale Price
Regular Price
Sold Out

Unit Price
translation missing: en.general.accessibility.unit_price_separator 
SKU 3106-EX008

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 product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to