my buddy got his from speed inc. it was a decent deal. summit and jegs also sell them. but on my buddies camaro hes had nothing but problems. a few months after having it the motor fell apart, called the company out of racine wisconsin and got a new one sent for free... 3 days now and it wont close...
i got the cheaper one off jegs... it also stopped working after a couple months. i can see copper wire coming out of where the motor is... but mine was a much bigger motor and didnt have a gear reduction like DHM. it opened a lot quicker and i like the switch better.
ive never heard anything good about these and never heard of anyone having any real luck... but they are badass when they work!!!