Featuring 4 Inch Double Wall Tips, this bolt-up, factory fit exhaust system is tailored to match your goals for your car. With 18 more configurations to choose from with various sound levels and tip styles, we have you covered. Check the other configurations on the vehicle page.

The 20192021 STI Catback from Nameless Performance follows a long line of exhaust R&D established by Nameless Performance over the last four years. Building on the foundation of the 1114 WRX/STI Sedan Catback, this system includes numerous improvements and updates to fit perfectly on your 19 STI using the proven EJ series engine. Testing on the EJ series engine shows midrange gains of +32 ft-lb of torque and +22 hp at the wheels beyond a standard off-the-shelf Stage 1 tune. These gains come from innovative design features that have made Nameless Performance a leader in Subaru aftermarket exhaust development.

Key Features

• Matched Flow Dynamic

  • 3″ diameter resonated main circuit feeding into dual 2″ diameter secondary circuits

  • 2.25″ Y section in the midpipe ensures proper exhaust gas division with minimal restriction

  • Avoids oversized rear tubing, maintaining strong midrange torque and horsepower gains

• Reduced Cabin Drone

  • Dual 2″ rear circuits significantly reduce low-frequency cabin resonance at cruising speeds (exhaust drone)

  • Eliminates the boomy and raspy sounds common with larger rear circuit exhausts

  • Retains an aggressive and engaging tone at wide open throttle

Materials & Build Quality

• Constructed entirely from 100% T304 stainless steel for superior corrosion resistance and durability

• Includes T304 stainless steel flanges, tubing, hangers, and perforated muffler tubing

• Mufflers packed with medium-density, high-temperature resistant ceramic wool for longevity and compact design

• Muffler design is lightweight and outperforms many mufflers 34 times its size

Fitment

• Subaru STI: 20192021 (EJ series engine)

• Note: Not compatible with WRX models or 20152018 STI models