Shopping Cart

Your cart is empty.

Your cart is empty.

Baffled Billet Valve Cover Breather compatible with 2001-2016 Chevrolet Silverado & GMC Sierra 2500HD 6.6L Duramax Turbo Diesel (Gunmetal Gray)

5.0 (2) Write Review
Free shipping on orders over $29.99

$89.95

$ 34 .99 $34.99

In Stock

1.Color:Flat Black


  • Relieves positive crankcase pressure
  • Direct replacement for oil cap
  • One-way check ball for MAF based cars
  • Internal baffle and stainless steel mesh disk media helps to separate oil/air
  • Retains factory PCV system


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 (i.e. K&N). 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!


Cody
April 22, 2025
Its a snug fit to get installed. Have to use a channellock or eqvilant to grab the round surface. Will have to use the same pliers to remove this every time for an oil change. I couldn't spin it in or out by hand. A Hex head along the base would have been nice to give good grip and not scratch up. I wouldn't trust someone else to change my oil with this on.Packaged quite well, nice finish, good quality product
Aaron S.
January 22, 2025
Arrived fast, looks great! Will be buying another one for my other duramax. Be sure to remove filter when installed the billet section. It had a tight and secure fit. I used a towel and some channel locks to be sure it locked into place. I originally had the fleece oil fill cap ($40) pony up the other $40 and get yourself one of these !