integraboosted

Which EMS is more worthed getting and more reliable the motec M4 or Hondata S300 I know a lot a people dont run the Motec M4 cause its costs an arm and a leg Im aiming for low 700 Whp would this EMS be worthed for the price or just stick to the Hondata S300.

rmcdaniels

You're comparing apples and oranges, the M4 is a standalone aftermarket EMS with additional capabilities like boost and traction control, real-time telemetry with wireless monitoring, programmable inputs/outputs, and more. The S300 is a Honda ECU with a programmable chip in it that lets you change the settings for what a factory ECU can control. The Motec also costs thousands of dollars more than the S300.

I wouldn't do the M4, especially as it only has 2 ignition drivers, but the M400 looks pretty interesting, although for 1/3 the price I can get most of the features of the M400 in the AEM EMS, which is what I'm currently running.