The Injen Hydroshield 1119BLK is a black, water-repellent pre-filter cover that slips over the outside of a closed-top Injen air filter. Injen's Hydroshield is UV resistant, can stop contaminants down to .005", is puncture resistant, and has elasticity characteristics which helps it return to its original shape after servicing. It is designed for use on closed top air filters only, and the manufacturer lists confirmed fitment on Injen X-1107-BB / X-1107-BR filters. The shield is built from a base media treated with a hydrophobic water-repellent, so splashes and road spray bead off before they reach the element. Owners on user forums say the wet-weather benefit is real: one reported that water repels right off the shield during a test with a washer jug. Stock intakes rarely offer this kind of protection, which makes the Hydroshield a sensible choice for a Cold Air Intake on a daily driver in rain-prone areas, and a buyer searching for a 7 inch base Injen pre-filter or a 1119BLK water-repellent wrap will find this part's footprint matches the X-1107 family.
The main trade-off is airflow. Owners on user forums report that the shield's smaller surface area can slow intake flow, and they describe the effect as anywhere from negligible to noticeable, so details vary and buyers should weigh that against their goals. The shield is water-repellent, not waterproof, so it does not replace the need to avoid deep standing water. Installation is generally a weekend-friendly job: forum builders describe it as taking roughly an hour to two hours, with most of that time spent checking clearance around the intake tube and the engine bay. Keep the element and housing clean before fitting the shield, and always confirm the base diameter matches your filter before ordering.
The manufacturer confirms fitment on the Injen X-1107-BB and X-1107-BR air filters. It is also listed as a direct fit for many other Injen filters and for some universal applications, but the filter must be a closed-top design with a base diameter that matches the 7 inch measurement.
No. The manufacturer describes the Hydroshield as hydrophobic to help repel water, and states it does not make the filter waterproof. Owners on user forums report that it handles splashes and heavy mist well, but a filter that is fully submerged can still take in water.
Details vary. Owners on user forums disagree on how much restriction the shield adds, with some reporting a small loss in throttle response and others reporting no noticeable change. Confirm the current airflow guidance with the manufacturer before purchase if peak output is critical.
Installation is generally considered a straightforward DIY job. Owners on user forums say it can be done in about an hour to two hours with basic hand tools, though they recommend measuring clearance around the intake tube and engine bay before final fitment. Remove the air filter, clean the element and surrounding housing, and slide the Hydroshield over the filter, confirming it seats snugly and does not interfere with any sensor or hose. Keep in mind that the shield is not waterproof, so avoid driving through deep standing water even with it installed.
