12-Series are the strongest after-market brushed dual-fans in the world, capable of 3500 + CFM. They are also the quietest and with 2 5/8″ of clearance needed, the slimmest as well. 26 is the smaller one of the two Cooling Components dual-fan set-ups, good for radiators between 26.25″ to 28″ wide. If you need the shroud taller than 18″, let us know.
Since they operate with high-current, make sure you get the correct wiring kit for it. At least, a 120 Amp alternator and two 70A relay kits are required to run these two speed monsters that can keep any size engine cool in heavy traffic.
For best results and highest efficiency, ask about how to make them both turn on at low and then high (instead of one fan at a time)