BEE*R?
You not thought about a BEE*R Rev limiter?
They use Ignition cut and for all intents and purposes...they are universal.
Just need to be aware of what wires you splice etc.
2 Stage Rev limit:
1 - Set when either button is activated or can be used in conjuction with your handbrake sensor. Individually setable Rev limit with adjustable gain (how many times it will *bapbapbap* in a second etc)
2 - Standard Rev limit. Will not overide factory ECU limit however, so would need to be set JUST below it..