Skip to main content

Injen 17-20 Honda Civic Si 1.5L Turbo (Sedan Only) 3in Cat-Back Stainless Steel Exhaust

Take your Honda Civic Si to the next level with the Injen 3in Cat-Back Stainless Steel Exhaust. This high-performance exhaust system is designed to deliver an aggressive sound and impressive power gains.

Featuring mandrel-bent stainless steel tubing, this exhaust system maintains its shape and size throughout, providing smooth, unrestricted airflow. The investment cast flanges and custom hangers ensure a hassle-free installation.

  • +11 HP and +10 ft-lbs torque gains
  • 304 stainless steel construction
  • Polished finish
  • Dual 4in titanium tips

Experience the difference with Injen's expertly crafted exhaust systems, proudly built in Pomona, CA.

Make Model Year Type
Honda Civic 2017 Si
Honda Civic 2018 Si
Honda Civic 2019 Si
Honda Civic 2020 Si
In 1988, a young entrepreneur named Ron Delgado was working late into the evening – trying to find a better way to polish products for his family “job shop” business. At the time, most machines only polished along flat surfaces. But when Ron had the idea for a multi-axis machine – which could polish better and faster than anything he had used before - he was determined to make it a reality. What began as a mission to perfect the art of polishing soon grew into a full-fledged quest to develop industry-changing design and manufacturing solutions. And, in 1991 – as the demand for high quality aftermarket air induction products began to reach scale – Ron knew he had found an opportunity to make his mark on an industry he loved. Launching Injen – with a pioneering patent that allowed enthusiasts to achieve better performance from their vehicles without annoying “Check Engine Lights” (CEL’s) – Ron and his team have never waivered from their commitment to innovate and deliver products that solve for the increasingly complex nature of vehicles brought to market.
Reviews for “Injen 17-20 Honda Civic Si 1.5L Turbo (Sedan Only) 3in Cat-Back Stainless Steel Exhaust”

Average rating of 0 out of 5 stars