Steve, did a quick SEARCH and quicky found several posts and some threads:
The new electronic control module will come as a kit with a required model specific harness to allow it to plug-in in place of the old EHC. No re-wiring will be required and
estimated installation time is approximately two hours. There will be kits available for all models from 2005 to the present. Current estimates put the retail price for these kits at around $500.
Some functions will be sacrificed with the new module;
turn signals will no longer be self cancelling and there will no longer be a hazard flasher function.
Due to space limitations on many 2004 and older models the new module will not fit. In those cases the Wires Plus component can be utilized. Installation of the Wires Plus unit requires approximately twelve hours labor as the wire harness must be cut and terminated to complete the installation process
12/20/2010:
"No EHC will be available for the 2004 to 2008 Big Dog Line of Motorcycles. All the new motorcycles will have the same system that is in the 250 K-9. The replacement systems are not available yet. They should be available around the first of the year, 2011. They are to be plug and play and specifice to the models due to the length of the wiring harnesses. The first ones available will be for the 2005 to 2008 K-9 and the Mastiff. Other models will follow"
That's that last we have heard. - LF
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http://www.bigdogbiker.com/forums/technical/24906-whats-story-new-ehcs.html
http://www.bigdogbiker.com/forums/i...teries/24392-new-bdm-ehc-elimination-kit.html
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A great option is the WP from Jake