http://en.wikipedia.org/wiki/Computer_fan
red wire can handle 12v, 4 wire is PWM
http://en.wikipedia.org/wiki/Fan_control
picture shows 4 dials for fans, and heres one f/s
http://www.google.com/products/catal...tle#ps-sellers
as far as placement i would push from one side and pull from the other
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1997 Camaro Z28 - 355 LT1, T56, CC503, LTs, ORY, Bald Eagle-back exhaust, !emissions, Lingenfelter CAI, EWP, !CAGS, BMR LCAs, UMI PHB, Koni Str.t/Koni SA, C5 Z06 front / LS1 F-body rear brake swap, factory hurst with short stick 
2014 2LT Cruze 2.0 Turbo Diesel
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