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Whether you want to gain more horsepower and torque or get a deep exhaust rumble, an aftermarket exhaust system will help you to achieve this goal. HKS is one of the leading manufacturers of performance automotive parts, and their exhaust systems provide an easy opportunity to upgrade both sound and performance.

Engineered with performance, quality, and value in mind, they can maximize horsepower gains throughout a broad powerband. Made from premium quality materials, it will provide you with many years of reliable performance and stylish look.

HKS® - Hi-Power Spec-L Series™ 304 SS Cat-Back Exhaust System with Split Rear Exit


  • Exhaust System Type: Cat-Back
  • Exhaust Tubing Material: 304 SS
  • Exit Location: Split Rear
  • Main Tubing Diameter: 2.56" to 1.97"
  • Exhaust System Sound: Aggressive / Loud
  • Tip Quantity: 2
  • Tip Material: Carbon Fiber
  • Tip Outlet Diameter: 3.7"
  • Pieces: 4
  • Sound Level Stock: 74 dB
  • Sound Level HKS: 82 dB
  • Idle Sound Level Stock: 54 dB
  • Idle Sound Level HKS: 57 dB
View the full selection of HKS Exhaust Systems for Subaru WRX: HKS™ | Performance Exhaust, BOVs, Suspension and Engine Parts —
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