HKS Legamax Premium Cat-Back Exhaust (15+ WRX/STI)

Legamax Premium mufflers offer the performance benefits of a sports muffler with the class and elegance of a premium muffler. Every tail pipe design is customised per application to ensure that muffler has impact and becomes a focal point in the appearance of the vehicle, yet blends with the overall design of the car.



HKS is perhaps the most known aftermarket brand in the world. HKS specializes in aftermarket high performance auto parts engineering and manufacturing. Formed in 1973, and named after the founders Hasegawa, Kitagawa, and Sigma, HKS began tuning engines and cars with a vision to tune and manufacture high performance engine components and turbo kits that surpasses OE Manufacturers.

Legamax Premium mufflers are constructed of SUS304 grade stainless steel to give a high lustre finish which is durable. Some applications also incorporate the latest automotive fashion trends by featuring titanium tail tips which adds to the premium appearance with its distinct look.

  • Optimized tip for each vehicle model. The base vehicle is studied from different points of view to select the best tip, which has an impact and it is well balanced and high quality
  • High quality and JASMA approved. It clears the strict JASMA standard
  • High quality SUS304 for further durability
  • Proven "Advantex* glass wool" (Continuous fibeer glass wool).* Advantex is a registered trademark of Owens Corning



    Muffler:LEGAMAXMaterial:S3Tip O. D.:3.5"Piping Diameter:3.0" then splits to two 2.7" pipingNoise Level:83 db


Vehicle Fitment

  • 2015+ Subaru STI
  • 2015+ Subaru WRX

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

More Information
SKU 31021-BF001
Product Type Intake and Exhaust
Intake and Exhaust Exhaust
Brand HKS
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