Associated ASC27490
Sonic 540-M4 Modified Motor 7.5 DE
Thanks to input from our international racing team, the Sonic 540-M4 Driver Edition was created!
The 540-M4 Driver Edition is technically identical to the standard 540-M4, but is instead equipped with the popular #27447 rotor. This rotor is the lowest strength option, which is reported to improve throttle feel and consistency, resulting in better overall race times.
The 540-M4 Driver Edition is technically identical to the standard 540-M4, but is instead equipped with the popular #27447 rotor. This rotor is the lowest strength option, which is reported to improve throttle feel and consistency, resulting in better overall race times.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov