Half way through building my own version  spent a whole $3.53 so far, next bits are the expensive ones (the connectors)  . I am also making mine switchable so I can choose economy or performance. Looks like I will be up for around $23 all finished. Might also do a -30 shift one as well as I now have a modified pipe on the bike and am contemplating tackling the air intake to get better flow through the engine.

I still ain't gonna spend US$150, and until I saw Mike's posts I wasn't going to spend €40 either.But I sent the big fat credit card on a mission in the early hours of this morning, and my module will be mailed tomorrow.See if it tames the beast a bit through traffic sometime next week, I hope.I'm sure Billy and Sean will both build something cheaper, and could even be better, but for those of us with no hand skills €40 doesn't sound too bad.

Cable arrived yesterday, and I finally got my mitts on it this morning when I picked it up from the Post Office.  Just looks like a bit of wire with a connector each end.Took my clumsy fingers three minutes to fit - the sensor fitting is tucked away under some spaghetti and I needed a screwdriver and some long nose pliers to reach, so ninety seconds to find them on my chaotic bench, 90 seconds to do the job.It will get road-tested on the way to work in the morning, but it is already clear it's not JUST a piece of wire.  The bike does not like to idle on first start without the idle-advance lever being pulled up halfway normally, with the cable fitted it chugs over happy as Larry at a steady 1,000 rpm: at which rate of tickover it would normally stall while cold.

Mine should be here by Saturday then.

You are a sly dog, Alex, where did that come from?  Must justa been the way I read your last post, I thought it indicated doubt about the product, "Let's hope it works as advertised".  I assume you bought one for the black "commuter bike"?

Yep, that's what it's for. The bike still has more pinging than I would like. These bikes are set up a bit lean from what I read. My hope is that the booster plug will fix this.

It certainly should do the trick: my eleven-hundy-ess is so much easier to ride in traffic it is hard to credit.  It will roll down almost to idle without having to declutch, and it will roll on again without snatching or yumping.  Even with the traffic being silly, as aways, in the rain I made way fewer gear changes than normal on the way home tonight.I'm tickled pink, so I am: Plunket Ave being closed to complete SH20 link for six weeks, the Bee-em will be doing a bit of commuting, because I ain't getting up before 0400 hrs to get to work, which is what I would have to do on the pushbike, because of the detour involved.