At last you can finally purchase a crossover system for your serpentine belt driven EFI motor. Until now there was no way to reap the 15 to 20 horsepower gain that could be achieved by removing the unnecessary power robbing circulating pump. These beautifully polished crossover kits allow you to retain your factory serpentine drive belt through the use of a clutchless freewheeling billet idler pulley. This unit is a perfect addition for any EFI motor looking for looks and performance while retaining the OEM drive system.