As posted in the Hondata news:
DSM 450cc injectors will not work with the Honda ECU - the electrical characteristics of the injector are not suited to the ECU, resistor box or no resistor box.
If you use DSM 450cc injectors you will find the engine difficult to start, and the engine running lean at part thottle, plus tuning is very difficult.
"http://honda-tech.com/zerothread?id=456616"
What gives? anyone want to expand a little on the subject? ...and yes I'm running them too on my 8psi JRSC'd GSR