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Your cart is empty. CFM Performance now makes it easy to vent the crankcase on your engine with our new billet valve cover breather kit. This kit is a direct replacement for your factory oil fill cap and allows unwanted crankcase pressure to exit.
Our breather is the original on the market to incorporate a one way check-valve, keeping unmetered air from entering while the crankcase is under vacuum. In other words, this breather acts just like the factory oil cap, sealed under normal driving conditions. Only until positive pressure becomes present does the breather open to vent unwanted crankcase pressure.
This breather also has an integrated three-layered baffle and stainless steel mesh disc media to help contain oil particles that are carried by the crankcase pressure.
Our filter elements are washable and can be re-oiled similar to most aftermarket filters. Our large selection of high quality finished filter tops will be sure to add some style to your engine bay.
Although this breather was designed for use in racing applications, additional crankcase pressure ventilation is beneficial for any motor. Plus, our breather looks great in any engine bay!
Bryan
August 28, 2025
Fits & works perfectly no issues
Danny T.
July 28, 2025
Not only did I receive it in a timely manner but it also fits my valve cover perfectly.
Symple
June 21, 2025
Exactly what I'd needed, work as described.
Kyle
June 19, 2025
All i got with this thing was a check engine light on my 2014 evo with 60k miles within an hour of install. It’s been sitting in my garage collecting more dust than a nun ever since.
Danny Demirovic
May 26, 2025
Ordered off their actual website and didnt know you can order from amazon. works exactly as described. would reccomend to all evo x owners.
brian cribas
May 14, 2025
Did not fit my evo at all.
Bryan
April 23, 2025
Fits & works perfectly no issues
Danny T.
April 3, 2025
Not only did I receive it in a timely manner but it also fits my valve cover perfectly.
Symple
January 31, 2025
Exactly what I'd needed, work as described.
Kyle
January 24, 2025
All i got with this thing was a check engine light on my 2014 evo with 60k miles within an hour of install. It’s been sitting in my garage collecting more dust than a nun ever since.
Danny Demirovic
November 21, 2024
Ordered off their actual website and didnt know you can order from amazon. works exactly as described. would reccomend to all evo x owners.
brian cribas
November 14, 2024
Did not fit my evo at all.
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