It can be faster, since each motor will have less of a load, he can gear up since the motors will not get as hot as if there were a single motor. Also, he has TWICE the available power as a single motor.
SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz