I never had NOISE problems with electric fuel pumps, having used them for 50 years. Where they are mounted is very important so they avoid road debris, and high-centering of the car. YES, I understand these things don't happen often...but I build drivers. Consider a car driving off an unseen curb, hitting a muffler that fell off an old car, driving through high water, snow, and mud. Keep fuel lines, electric wires, and brake lines ABOVE the bottom of the frame or floor pan in a unibody. If mounting the pump in rubber be sure to run a good ground wire. Protect the pump...it supplies fuel to the motor and if it is damaged can cause fire. Fuel Injection pumps produce much more pressure than a carburetor pump, so be extra careful if the pump is outside the tank. A carb pump pushes about 4 to 9 pounds pressure, while an FI pump produces between 30 and 70 PSI. THAT is why modern cars have a fuel shutoff switch in the trunk or some easy place for fire fighters to reach. I usually mount a cut-off switch on the dash for safety in an accident and to avoid theft. One Hot Rod (1933 Plymouth coupe with corvette V8) had dash switches that MUST be in certain positions to have the ignition on and the fuel pump on. A very simple way to add security to any car. We tested it and the car made it out the driveway...then died from lack of fuel. Imagine your favorite Sunbeam sitting in the middles of the road without a driver. Better than in the bad guys garage.