SPAL is recognized worldwide as a leader in the manufacture cooling fans, especially for high performance applications.
These are available in a variety of sizes, but here we have the most common 14" Puller fan.
This straight blade fan is 15" in diameter, less than 2.5" deep, draws 10.5 amps, and moves 1280 CFM of air. This unit installs beautifully in the original fan location of many BMWs (as well as others).