They are unreliable. Look good on paper but cause funcky electrical issues.
Could you explain yourself? What kind of electrical problems?
Mainly inconsistent or hung shifts when in regular drive mode. Say for example you are taking off from a light normally, and it shifts 1-2-3 but won't go past that. Reach down and unplug it...bang, back to normal shifting. Random flashing tow/haul light etc. Just weird and glitchy.
And of course, when you call tech support, the have NEVER heard the likes. Yet many other guys say they have similar issues....
I contacted the company and they told me it would not work with a Cummins conversion.