These modular water pumps from Meziere are designed specifically for street-driven and fully equipped racecars. Featuring a 55 gpm flow and an improved pulley design, these pumps free over 11 rear wheel horsepower and run cooler in traffic. Installation of these bolt-on pumps is nearly identical to the factory pump and can be completed in just a couple of hours. Aftermarket underdrive pulley sets may require a shorter serpentine belt.