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.
71 Reviews Hide Reviews Show Reviews
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5 Great Cover
Posted by IcyTimes on May 17th 2015
I can see how this would make your air cleaner last longer. Very well made. Happy with this.
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5 6637 air filter kit and cover
Posted by Rick L. Phoenix , az on May 3rd 2015
Awesome . Looks great and you can hear the Turbo . Will buy again for other prouducts .
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5 Quick fix
Posted by Gary Lessner2915 on Mar 24th 2015
Had some critters chewed the yellow cover. The blue one looks great and these covers really keep out the dirt. My 6637 filter was still all white.
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5 Looks great!
Posted by Nate on Jan 15th 2015
I ordered the whole 6637 kit with filter cover and my dad did the DIY. He liked the cover so much I got him one for Christmas. Makes 2 more happy customers.
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5 True Blue
Posted by Dave on Oct 21st 2014
This cover is the best fit you will get for your filter, the design of the cover is far superior to any other cover available . there is a good color range for this cover too.
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5 Great fitment, looks even better
Posted by Ryan M. on Aug 14th 2014
Keeps the crap and the H2O out of our 6637 filters. Looks cool, too.
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5 Fits Even Better Than the Earlier Ones I Got!
Posted by Josiah on Aug 11th 2014
Fits my 6637 filter just great! I got one a while ago and it was a little tight but this one fits perfect! I don't know if you guys adjusted the size or not but the one I just got fits awesome! Keeps the larger particles out of the filter. Looks awesome too!
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5 Another Great Product
Posted by Unknown on Jul 26th 2014
Nice fitment and looks good under the hood.
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5 Good Prefilter protection.
Posted by marv on Jul 7th 2014
Going off pavement kicks up a lot of debris. This should be more than enough to keep the filter clean of larger particles. Plus it looks amazing!
