With a CFM Performance engine breather, your Ford can let off pressure
By Steve Turner
If you’ve been around race cars, you know they are always equipped with crankcase breathers to relieve the pressure that builds up inside the engine. However, you don’t often see breathers on modern cars because they are equipped with sensitive emissions equipment, so adding one might throw a code. Worse yet, an unmetered leak on the engine could cause a dangerous lean condition.