Double Pass Left is for engines with the water pump inlet on (USA)driver side. This unit was designed with performance in mind. We've widened the unit to give you increase surface area and to accomodate 12 inch fans that give you a combined air flow measurement of 3100 cfm.
Large rubber flaps open at speed to increase air flow, consequently maximizing fan life by shortening fan run time. This unit functions well with any motor you select and looks the part if you have a show car that you wish to enhance.
Overflow bottle sold separately.
May we suggest our timer assy, temp controler and water tube as well.