Get ready to be thrilled! The Injen SP1584 intake unleashes an exhilarating intake growl as you floor your Honda Civic Si and let the turbo spool up. Its heart lies in a 6061 - T6 aluminum air intake tube, offering a smooth, unobstructed path for highly efficient airflow. Our engineers have carefully crafted this intake to deliver maximum safe power while boasting clean aesthetics that'll turn heads every time you pop the hood. Besides a significant power boost, the Injen team has maintained a safe Air - fuel (A/F) ratio across the power band. The SP1584 comes with a fully serviceable Injen SuperNano - Web dry air filter. With increased filter surface area, it allows greater airflow and top - notch filtration. You can actually hear and feel the power this intake provides! On the dyno, it added an amazing 23 additional horsepower and 21 pound - feet of tire - scorching torque. It has an aggressive, throaty tone that's unrivaled in the aftermarket, and you'll love it every time you hit the accelerator. Want a personalized intake? Injen offers it in three cool finishes: SP1584BLK (Black), SP1584P (Polished), and SP1584WR (Wrinkle Red). And to sweeten the deal, this SP CAI kit comes with Injen Technology's unbeatable limited Lifetime Warranty! This part fits 2017 - 2020 Honda Civic Si and 2021 Toyota Tundra in various trims including 1794 Edition, Limited, Platinum, SR, SR5, Trail, and TRD Pro.












Using the Injen SP1584 intake is straightforward. First, make sure your vehicle is turned off and cool. Follow the installation instructions carefully to attach the intake to your engine. Once installed, start your vehicle and enjoy the enhanced performance. When it comes to maintenance, check the air filter regularly. The Injen SuperNano - Web dry air filter is fully serviceable. If it gets dirty, you can clean it according to the instructions provided. Also, keep an eye on the intake tube for any signs of damage or wear. In case of any issues, refer to the warranty details or contact Injen's customer service. And always remember to drive safely and responsibly while enjoying the extra power this intake provides.