This SUPER DUTY RACE fan is the correct cooling fan for late model doghouse cooler with the wider fan blade.  This fan has been welded on every fan blade, unlike the HD unit that is only welded on every other blade, and dynamically balanced for higher RPM and severe race duty use.  It is our best fan for the most severe racing or street applications.

A common cause for overheating is to have the improper early fan installed on a late model car.  NOTE:  This fan is approximately 37mm wide and NECESSARY for proper cooling on all dual port motors.  It is also correct for single port motors that have been upgraded to the later doghouse style cooling system.  It will fit in most late model aftermarket fan shrouds, not matter what style for improved cooling.  It will NOT fit in stock VW fan shrouds with the early cooling system.