Transform your 2017 and newer Honda Civic Si 1.5L with the Injen SP1581BLK Cold Air Intake. Designed for optimal performance, this intake system enhances airflow, resulting in an impressive power boost of up to 29 horsepower and 25 ft-lbs of torque. The intake features Injen's patented MegaRam (MR) Technology and Air Fusion, ensuring that your engine breathes deeper and runs more efficiently. Constructed from high-quality 6061-T6 aluminum, this cold air intake provides a smooth, uninterrupted airflow path, giving you the performance you've always wanted. The Injen SuperNano-Web dry air filter is fully serviceable and increases filter surface area for superior filtration and airflow. Plus, enjoy an aggressive sound that enhances your driving experience while maintaining a safe air-fuel ratio. With multiple finishes available, you can also add a personalized touch to your engine bay. The Injen SP1581BLK intake system comes with a limited lifetime warranty for added peace of mind. <b>Features:</b> * Increases horsepower by up to 29 HP and torque by 25 ft-lbs: Increases horsepower by up to 29 HP and torque by 25 ft-lbs * Patented MegaRam (MR) Technology for optimized airflow: Patented MegaRam (MR) Technology for optimized airflow * Constructed from durable 6061-T6 aluminum for longevity: Constructed from durable 6061-T6 aluminum for longevity * Fully serviceable Injen SuperNano-Web dry air filter for superior filtration: Fully serviceable Injen SuperNano-Web dry air filter for superior filtration * Aggressive sound enhancement for a thrilling driving experience: Aggressive sound enhancement for a thrilling driving experience * Multiple finishes available for personalization: Multiple finishes available for personalization * Limited lifetime warranty for added assurance: Limited lifetime warranty for added assurance