I just sent Jamie an email about 20 minutes ago. I received the replacement tuner last week, and installed it. Didn't even start the bike until today due to the weather, and fear that I had screwed up on the install. Their diagnosis was correct, the tuner was defective. This was not a big suprise to me, as I work with, and install electronic devices on a daily basis. You'd be amazed at how many components are bad, new out of the box, from the manufacturer. Bike started, idled, and ran perfectly on about a 20 mile test run. The A/C and the tuner really woke the old red bitch up. I'd do business with them, and recommend them on any day.