- About Hydroshields
- SMOG Info
There are several brands out there when it comes to aftermarket air intake systems, but Injen leads the way in innovation, efficiency, and power gains. Injen Cold Air Intake Systems are more than just a high flow air filter on a less restrictive tube. Featuring Injen's patented MR Technology, Injen incorporates a step process into their intake tubes (meaning they increase or decrease the diameter of the intake tube at strategic points to control airflow). This, coupled with the fact that Injen Injen Air Intakes incorporate your existing sensors, mean you won't have any check engine lights and it is safe for use on your vehicle. This "Factory Tuned" design means you won't need any tuning and makes this truly a bolt on system.We GUARANTEE the LOWEST price on all Injen Intakes!
At the end of the Injen Intake is the Injen High Flow Air Filter Element, which is relocated to an area behind your bumper and inner wheel well fender. This strategic placement allows you to obtain colder air while still having the air filter protected from the elements. The Injen air filter that can be cleaned and reused for as long as you own the vehicle. An incorporated velocity stack smooths out airflow to help maximize power gains. Comprehensive installation instructions including photos make installation of your new Injen Intake easy enough to do yourself with basic hand tools in a couple of hours or less. Everything you need to install this air intake is included and the intake comes with a lifetime warranty.
Injen Cold Air Intake Systems exceed OE standards and as a result will not void any existing factory warranties that you may have. Additionally, you'll enjoy increased horsepower and torque, as well as improved throttle response. Fuel economy gains, especially during freeway conditions, are commonly achieved helping the unit to pay for itself over time.
If you find a better price, call us and we will match or beat the price, and ship it the same day!
The part number on this item is SP1978P (or SP1978BLK) and it fits 2004-2006 Nissan Altima V6 3.5L models.
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.