Key Features:

• Direct Fit For: 2017-2020 Honda Civic Si L4-1.5L Turbo
• Does not fit Canadian models
• Dyno Proven gains of up to 29 hp and 25 lb-ft. of torque
• Cold Air Intake Design
• Features Injens patented Air Fusion Technology
• Features Injens patented MegaRam (MR) Technology
• Provides power gains while maintaining A/F ratios
• No additional tuning required
• 6061-T6 aluminum intake tubing
• 2-piece design easily converts to short ram system
• Fully serviceable Injen SuperNano-Web dry air filter
• Replacement air filter part number X-1062-BB
• Optional hydroshield part number 1031BLK
• Available in multiple finishes
• Aggressive engine tone under full throttle
• Smooth intake piping eliminates restrictions and improves airflow
• Made in Pomona California, USA
• Injen Technology Limited Lifetime Warranty

Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

Available Colors:

• Polished:SP1581P
• Wrinkle Black:SP1581BLK
• Wrinkle Red:SP1581WR

Enhance the performance of your 2017-2020 Honda Civic Si with the Injen SP1581P - SP Series Cold Air Intake System. Designed to optimize airflow and maximize engine efficiency, this polished intake system is engineered for enthusiasts seeking a boost in horsepower and torque.

Performance Boost

The Injen SP1581P offers dyno-proven gains of up to 29 horsepower and 25 lb-ft of torque, making it an excellent upgrade for drivers who want to feel the difference behind the wheel. With its cold air intake design, this system ensures that your engine receives cooler, denser air, which contributes to improved combustion and overall performance.

Innovative Technology

This intake system features Injen's patented Air Fusion Technology and MegaRam (MR) Technology, which work together to provide substantial power increases while maintaining optimal air-fuel ratios. The smooth intake piping helps eliminate restrictions, boosting airflow efficiency for a more responsive driving experience. Best of all, no additional tuning is required, allowing you to install and enjoy the benefits without hassle.

Durable and Versatile Construction

Made from high-quality 6061-T6 aluminum, the intake tubing ensures longevity and resistance to corrosion. The 2-piece design allows for easy customization, providing flexibility to convert to a short ram system if desired. The fully serviceable Injen SuperNano-Web dry air filter enhances filtration while delivering maximum airflow.

Installation and Compatibility

This product is specifically tailored for the Honda Civic Si L4-1.5L Turbo models from 2017 to 2020, ensuring a direct fit and straightforward installation process. Please note that it does not fit Canadian models. For an enhanced look and protection, optional hydroshield parts are available.

Available Finishes

The Injen SP1581P is not only functional but also aesthetically pleasing, available in multiple finishes including polished, wrinkle black, and wrinkle red. You can choose the finish that best complements your vehicle's style.

Sound and Warranty

This cold air intake system provides an aggressive engine tone under full throttle, enhancing the sportiness of your drive. Additionally, it is backed by Injen Technology's limited lifetime warranty, giving you confidence in your purchase.

Note: This product is not currently CARB exempt, so it is not available for purchase in California or for vehicles registered with the California Department of Motor Vehicles.