Aussiespeed bright red hotrod style aluminum breather cap cover designed to slip over after market chrome push in style breather caps, this ultra large finned cover matches other raked fin products in the Aussiespeed range. The cover is powder coated bright red with satin finish aluminum fins.The cover is supplied as a complete assembly, includes chrome push in breather cap,rubber grommet seal. As this is a cast item there is taper on the internal dimensions. measured in the centre 42mm deep, 37mm outer inside edge. 72mm inner opening diameter.