The Injen 1074BLK is a black Hydroshield pre-filter that slips over the outside of an Injen X-1068 air filter, the SuperNano-Web dry element. The manufacturer describes the Hydroshield as a proprietary base media treated with a hydrophobic water-repellent finish, so splashes and heavy rain are diverted before they can saturate the filter. The manufacturer also says it stops debris about .005 inch and larger, which keeps grit away from the pleats and lets you go longer between main filter cleanings on dusty backroads, track days, and off-road runs. Compared with running the bare filter, the sleeve is a replaceable sacrificial layer. Compared with a generic foam wrap, it is sized to the X-1068's 8.50-inch base and 7-inch top.
Fitment is the main thing to verify before ordering. The manufacturer confirms the 1074BLK for the Injen X-1068 and X-1101 filters, with an 8.50-inch base, 8.5-inch height, and 7.0-inch top. Measure your installed filter before ordering, especially if you run a different Injen element. Searches like "Injen 1074BLK X-1068 pre-filter," "Hydroshield for SuperNano-Web," and "water repellent pre-filter for dry air filter" will find this part. Per the manufacturer's product copy, it fits snug and secure over the filter, so expect a remove-the-filter-first job, not a tool-based install.
The manufacturer confirms fitment on the Injen X-1068 and X-1101 air filters and lists it as a direct fit for many Injen filters and universal applications.
No. The manufacturer describes the Hydroshield as water repellent, not waterproof. It helps keep the filter from becoming saturated when splashed.
The manufacturer lists a limited two-year warranty against defects in material and workmanship on its Hydroshield pre-filters. Confirm current terms directly with the manufacturer before purchase.