- About Hydroshields
- SMOG Info
So you're looking for a cold air intake for your Honda Civic SI. You've come to the right place. If you've browsed around our website, you've seen that we sell all of the major intake brands. We recommend the Injen Cold Air Intake for this vehicle over the other brands we carry without question. Injen is the best for this car... Its that simple!We GUARANTEE the LOWEST price on this Injen Cold Air Intake!
The Injen SP1578 SP Series cold air intake system for your 2006-2011 Honda Civic Si is the perfect upgrade to your vehicle. After removing your factory airbox, the Injen intake tube is directed directly behind the front bumper to acquire colder, direct air. The larger and cleanable Injen air filter then goes on the end of the intake tube. You wont ever have a check engine light because your mass air flow sensor bolts right up to the Injen intake on the Honda Civic Si. Injen dyno tuned this intake to ensure maximum horsepower and torque gains on your Civic Si while still maintaining proper air/fuel ratios. Depending on your driving habits, many users have also reported noticeable gains in fuel mileage, making the intake pay for itself over time!
What Makes Injen Intakes better than their competition?Not only are all Injen Technology Intakes made in the USA, Injen cool air intake systems feature MR Technology, developed by Injen to maintain safe air/fuel ratio and highly efficient tuning. Injen also does extensive dyno tuning and r&d before releasing an intake, unlike many other companies who take an "if it fits, use it" attitude to aftermarket intakes.
The part number for this item is either SP1578P or SP1578BLK (depending on which color you choose) and it fits: 2006 Honda Civic Si 2007 Honda Civic Si 2008 Honda Civic Si 2009 Honda Civic Si 2010 and 2011 Honda Civic SI.
If you find a better out the door price on this intake, we will match or beat the price, and ship it the same day! Give us a call now! The part number for this item is SP1578
Introducing a colorful peace of mind.
Ever worry about water getting into your cold air intake system? For that added protection during those unsure moments, Injen Technology’s HYDRO-SHIELD PRE-FILTERS are race proven material manufactured from highly durable polyester. Uniform micron openings allow the filtering of debris .005” or larger. The HYDRO-SHIELD PRE-FILTERS are factory treated using an embedded hydrophobic process, which offers consistent airflow, water repellency and maintains horsepower gains. (Please note that this item is water repellent, not water proof).
Basically, the Injen hydroshield is a water shield and prefilter for your air intake system. It will allow air through and block water and large dirt particles, protecting your car and keeping your filter cleaner.
- Hydroshield Available in RED, BLUE, BLACK
- Water Repellent Outer Coating
- Consistent Air Flow
This Injen Cold Air Intake is 50 State street legal. If you are in California, a SMOG technician may ask you for a CARB EO number proving this intake is California emissions approved. The CARB EO Number for this intake is: D-476-5 This EO number will be stamped directly onto your Injen Intake, meaning no hassles at inspection time.