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CFM Performance now makes it easy to vent your crankcase on your 1986-2001 Mustang GT or Cobra 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.
This breather is the ONLY one in the market which incorporates a check ball to keep unmetered air from coming through while the crankcase is under vacuum. In other words, this breather acts just like a factory oil cap under normal driving conditions and when you get into boost it will release any crankcase pressure present.
The proprietary internal baffle substantially reduces oil particle travel without affecting air flow. A double-seal O-ring is used to reduce the amount of force needed to create a positive seal, increasing seal life and eliminating leaks. The filter element is washable and has a variety of top finishes for great looks. The pre-oiled cotton fiber traps dirt particles without restricting air flow. Although this kit was designed for use in racing applications, it works and looks great on any engine compartment.
April
Reviewed in the United States on February 15, 2023
Fits great on my 5.0. It only vents if and when crankcase is under pressure.
Jenna & Mike
Reviewed in the United States on February 23, 2022
On my 01 Cobra. Looks good 👍!
Customer
Reviewed in the United States on January 2, 2021
Very nice quality. Looks great too.
Katy
Reviewed in the United States on November 27, 2019
Great product, and the only one I found with a positive flow direction only!
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