MoTeC Snowmobile Plug-In ECU - Manual (Page 12)

4 Yamaha Apex Installation MoTeC
Installation
ECU and KTC
The M400 Marine ECU replaces the factory ECU in the forward
compartment of the engine. This is the most convenient location for
mounting the ECU because it can also be used for supercharged and
turbo applications without intercooler interference .
Configuration File
The Yamaha Apex Snowmobile Plug-in ECU is compatible with Apex
models from 2006 to 2010. There are two OEM ECU variants shown
below.
If your OEM ECU number is not shown, contact your MoTeC dealer.
To mimic all original Apex functions including dashboard alerts, the Apex
Snowmobile Plug-In ECU requires M400 firmware version 3.53C or higher.
8FP-8591A-00-00
For 2006-2010 Apex, Apex RTX, RTX ER, GT, ER, LTX, LTX GT.
8FS-8591A-00-00
For 2006-2007 Apex Mountain, Mountain SE.
And 2008-2010 Apex MTX, MTX SE.