UPR One Way Crankcase Breather Kit (2018+ Mustang GT/F150) 5013-03

Eliminate Crankcase Pressure with the brand new UPR 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.

This one-way breather fits the 2018 & 19 5.0L Mustang and F150. This also fits the 17/18 F150 3.5L

THIS IS NOT A BREATHER VENT AND DOES NOT WORK IN PLACE OF A CATCH CAN