Free up Horsepower - Eliminate Crankcase Pressure with UPR Screw In Baffled Billet One-Way Crankcase Breather Kit. This is a direct replacement for the factory oil fill cap that vents unwanted crankcase pressure to the atmosphere and improving overall performance. Incorporating a High-Performance check ball keeping unmetered air from entering the crankcase. The main benefit is that it drives just like stock until you get into BOOST and it releases unwanted crankcase pressure beneath the pistons during the down stroke. Basically, it frees up Horse Power that your engine never had the ability to utilize until installing this UPR Billet One-Way Crankcase Breather. Incorporating 4 internal baffles to control oil. Ideal for all street and race applications to handle engine blow-by and any boost levels.
We have a superior baffling system over any other valve cover breathers proven to deliver the best oil control.
- 5 Minute Installation
- CNC Machined Billet Body
- Direct Replacement for Oil Fill Cap
- Releases unwanted crankcase pressure under Boost
- Check Ball prevents unmetered air from entering engine
Note 1: This crank case breather will fit earlier Mopar applications using the same screw-in style oil fill cap. This unit will not fit 2015 Hellcat and similar models with the twist-in helix-style thread on the oil cap. For twist-in applications, please see the Hellcat listing.
Note 2: Due to manufacturing differences we can not guarantee fitment on non-OEM aftermarket intake manifolds. Will not work with Holley Sniper Intakes or Edelbrock Victor II Intakes.
