Made to high standards, these covers are designed to extend the life of your air intake filter while also giving you a way to visually see the amount of dust collected. The covers work equally well on both oiled and non-oiled filter elements to prevent larger debris from prematurely reducing critical air flow to your engine.
Installation Note: Take care installed over filter elements with metal cages as a metal snag can tear your cover.
68 Reviews Hide Reviews Show Reviews
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Filter cover
Fit great and a nice addition
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6637 cover
Wears well (it does wear). Wish the ends closed up tighter but for a product that endures heat, dirt, and constant vibration it's worth it.
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Perfect fit
Love it! Keeps the junk off my 6637
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If you use the 6637 filter this is a must
I have loved my Riffraff DIY 6637 since the day I installed it. This is the best prefilter sock I have seen. My air filter lasts so much longer and when I do decide to change the filter it still looks clean. Just wash the sock, hang dryer and bam. The filter ain't cheap so use the sock. I bought a second to trade out when I'm waiting for the other. Thanks Riffraff you have real products that I actually need.
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Looks great.
Love the way it looks. I just got it so i will see how it holds up. But love the way it looks.
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Great quality and look
The material is top notch and fit perfectly. Looks mean.
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Great looking and fitting product
Looks great in the engine bay and the fit was great
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Beautiful and well made!
Looks great and fits perfectly.
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Prefilter
Great looks...great quality and does what it's supposed to do. Logo looks EXCELLENT.
