This pump is sourced from several Porsche motorsport applications and flows enough to push even a high pressure turbocharged engines fuel system all the way to 650bhp. Only slightly larger than a walbro 255, this pump packs a punch. Especially recommended in applications using higher base fuel pressrues, this pump shines over many other pumps in performance past 70psi of rail pressure. Quality genuine Bosch, this pump will fuel your project safely and reliably. For wild projects, two of them will fuel 1200+ bhp and is smaller, quieter, and cheaper then weldon or larger aeromotive pumps. It truely is a killer setup.