Fuelab 40401-1 Reduced Size Black In-Line Fuel Pump Gasoline, diesel, methanol, ethanol compatible Internal speed controller for variable flow operation, motor speed can be adjusted for street or strip fuel demand Compact lightweight design is less than 2.5 pounds, high quality mounting brackets included No motor brushes to wear out or corrode, 12-16 volt vehicle electrical system compatibility No expensive voltage reduction/pulse width modulation controllers required for street use