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Your cart is empty.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)
GJ
Reviewed in the United States on September 3, 2023
So far, it’s worked as advertised. I have it on my CAI that is only a foot or so off the ground. Very high chance of debris/water getting to the filter, but I’ve reached my hand up to feel and it’s only slightly damp. So I’m sure my actual filter is staying dry. Probably wouldn’t hurt to buy a couple to keep on hand just in case, but so far, so great.
RP21
Reviewed in Canada on March 11, 2021
The water resistant material will wear away, but at least you have some added protection while its there. Hasnt been long enough for me yet though. Anyone that goes CAI should use it. Just spend the extra money and reduce the risk of hydrolock.
Ryan Giraldo
Reviewed in the United States on September 12, 2020
Fits nice and snug on my injen CAI.This replaced one that was installed for maybe 3 years. Provides good hydrophobic barrier for your filter. My intake sits very low and I have driven through very heavy rains with no issue.
joseph t.
Reviewed in the United States on February 1, 2020
Too bad my air filter is located within the bumper cover, cause this thing looks great! Feels high quality and does a good job at limiting water penetration. Definitely a good idea if you're air filter is located anywhere that water may be introduced to the intake.
Brian E
Reviewed in Canada on January 19, 2020
Direct-fit replacement part for the X-1013-BR filter on the Injen RD1200P intake on my daughter's 2002 WRX. Best price that I was able to find in my search for this genuine Injen part.
Peter, Ontario
Reviewed in Canada on January 10, 2020
I swapped to a dry filter after my MAF was fried by overindulgent oiling of the previous filter. A pre-filter seemed in order, as well, (based on the amount of crud on the previous filter). Got an AEM 21-2031D as the new air filter, and this fit perfectly.
Jachin Rivers
Reviewed in the United States on January 24, 2019
This is my 2nd Hydroshield for my Injen IS1200P shortram intake. There’s no air box in my WRX, so water does find its way to the intake unfortunately. This little gem does a great job of keeping the occasional water out and not fouling my MAF. The 1st one simply lost its hydrophobic properties after a few years.
Big papi
Reviewed in the United States on August 21, 2018
Check dimensions before you buy on the injen website I bought a small one and then I said whatever I’m gonna buy a smaller filter at my local autoparts turns out the smaller filter didn’t fit on it so I re order this one after I checked the dimensions and it fitted good now I’m less worried when I’m driving on rain
DEL
Reviewed in Canada on December 16, 2018
good product but its low quality it didn't last long
John
Reviewed in Canada on March 24, 2017
recently bought a CAI for my rsx, i would recommended buying this as it rains where i live and this does a very good job of deflecting the water (IT IS NOT WATER PROOF) it only water resistant.
Sean
Reviewed in the United States on May 31, 2016
I've had this installed over an AEM dryflow filter for about 2 years now.When it was new, it had amazing waterproofing, I could run it under the sink and my hand wouldn't get wet at all. When I cleaned my filter recently, I tested the waterproofing once again. It now has zero waterproofing and a couple small holes in the material for no apparent reason.I re-installed it just because I figured it could still act as a pre-filter to keep the filter cleaner. All was well until I drove through an intense thunderstorm and water from the road was splashed up on to the filter. The car started to buck and died a couple miles later. Thankfully, I was able to get it restarted and make it home. Not surprisingly, the car had thrown every MAF code in the book as a result of getting wet. When handling this when it was new, it was pretty clear that the waterproofing was a result of some chemical waterproofing film applied to the outside. I'm going to see if I can re-waterproof it with a can of Scotchgard. It is, after all, advertised as a breathable waterproofing solution. I'll report back if it works.Update: I successfully re-waterproofed my hydroshield using 3M Scotchgard waterproofing spray purchased in the camping section at Walmart for less than $5. As long as it doesn't tear any further, I should be able to continue using the hydroshield for a long time.
G.A.S
Reviewed in the United States on March 7, 2016
This was my second cold air intake cover ordered, since I live in washington some sort of pertection is a must have, so first i tried the cheaper water guard which did very poorly against my sink which was returned immidaetly.But this injen passes the sink test before being put on my car, it fits pritty snug but theirs no chance of it falling off. I feel better now that i know that my car isnt sucking up a ton of water everytime i drive through a puddle. Would recomend.But remember this isnt a "make your intake water proof" cover it just repells the water off of it.
Jared
Reviewed in the United States on February 3, 2014
This hydro-shield was extremely easy to put on and fits snug around the filter. I live in Southern Utah, so I don't have to worry about the rain or water, but it is nice to have that extra piece of mind, just in case I decide to drive through large puddles on those rare rainy days. Also it is supposed to help keep the filter clean for a longer time so I shouldn't have to clean it as often. Also didn't notice any reduction in performance so it isn't suffocating my intake at all. I highly recommend this product!
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