Description
Upgrade your Honda Civic Si with the Injen SP1578BLK Cold Air Intake System, engineered to deliver noticeable horsepower and torque gains while maintaining optimal air-fuel ratios. Crafted from high-quality 6061-T6 aluminum, the intake tube features a smooth design that minimizes restrictions and maximizes airflow efficiency. This design results in dyno-proven gains of up to 11 horsepower and 12 lb-ft of torque, providing your engine with the breathing room it needs for enhanced performance. The system includes a fully serviceable Injen SuperNano-Web dry air filter, which offers increased surface area for better airflow and superior filtration, ensuring your engine stays clean during spirited drives. The intake’s aggressive tone under full throttle adds a satisfying auditory experience, making every acceleration feel more impactful. This system is designed with Injen’s patented MegaRam (MR) Technology and Air Fusion Technology, both of which optimize tuning for safe power increases without compromising engine reliability. Installation is straightforward with hardware and instructions included, and no additional tuning is required. The Injen SP intake is available in multiple finishes, allowing you to personalize your engine bay aesthetic. Backed by Injen’s limited lifetime warranty, this intake system is a reliable upgrade for your Civic Si that seamlessly combines performance, durability, and style.
Features:
- Smooth intake piping eliminates restrictions and improves airflow
- Dyno proven gains of up to 11 hp and 12 lb-ft of torque
- Fully serviceable Injen SuperNano-Web dry air filter for increased airflow and filtration
- Includes hardware and instructions for easy installation
- s Injen’s patented MegaRam (MR) Technology for optimized tuning
- Maintains safe air-fuel ratios across the power band
- Incorporates Injen’s patented Air Fusion Technology for enhanced performance
- Aggressive engine tone under full throttle enhances driving experience
- Available in multiple finishes to match your aesthetic preferences
- Made in Pomona, California, USA, ensuring quality craftsmanship
- No additional tuning required for installation
- Compliant with EPA regulations and CARB EO #: D-476-8
Fitment:
Honda Civic MUGEN Si 2008
Honda Civic Si 2006
Honda Civic Si 2007
Honda Civic Si 2008
Honda Civic Si 2009
Honda Civic Si 2010
Honda Civic Si 2011

















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