hey guys just wondering will it make any difference if i dissconect that oil brether that goes from the rocker cover to under the air filter????

good idea bad idea?

 

its a 4k motor

 

thanks :)

Won't change a thing, just leave it.

If your replacing the air filter for something aftermarket you can buy a mini filter to put on the breather hole.

 

Stops oil messing up your engine bay. Or run a hose to a catch can.

That sucks clean air INTO the motor, so always have it filtered. It replaces the air that the PCV system sucks OUT of the motor and burns via the inlet manifold.