After removing the stock pumps, a CP-E TopHat (PN FM4V5011TP; $549.95) got the nod to replace them. The TopHat can house up to three fuel pumps, uses the OEM siphon, and allows the use of the factory fuel-level sensor. This hat features -10 feed and -8 return ports to feed a demanding engine. For the ’13 GT500, Team Lethal chose three Walbro 400-lph pumps (PN F90000262; $159.95). These twin-turbine, high-pressure pumps will flow 400 liters per hour at 40 psi running at 13.5 volts. They will support up to 500 hp each.