602/604 Valve Cover Breathers ( SOLD AS INDIVIDUAL ) This is to compensate for

This is to compensate for the forward angle of the 602 intake

The pathways inside the breather also allow for you to wash your racecar without ever having to take them off

For example:

Please measure the ID of your air filter to determine which stack you will need

602/604 Valve Cover Breathers ( SOLD AS INDIVIDUAL ) This is to compensate forThe common misconception about valve cover breathers, is the filter media used in your most common breathers is for filtering air into the engine. This is false. The motor experiences constant blow by, therefore, constant pressure is being emitted from the crank case. As your "filter" clogs up with oil & dirt during racing conditions, the rate at which the engine can relieve the constant pressure slows down. Increased crank case pressure puts pressure