another very happy HHR fan user here. summit crossflow rad and thermo switch kit and a chevy type pigtail connector. i had to slice off the plastic disc that covers the fan motor (5 min.) for clearance to the waterpump pulley. it cools really well and the whole cooling system cost a little over $250, and that is with shipping to canada from summit and rockauto. this is in front of a 500" lowdeck with 10.93 to 1 comp on pump 94, never sees 190# but i have yet to really test in hot weather and traffic after a long highway jaunt.