Picture of the failed part:
Those of you familiar with WI plumbing in general will recognize this piece. For those who aren't, this is the end of a coupler which provides the press-fit mechanism to retain the tube. That silver bit is supposed to be captive in the end of a hard plastic housing. The rest of the fitting is still on the car. What's surprising is that this part wasn't under any serious mechanical stress, and it's been on there for a year and a half, working just fine. For some reason it picked this morning to fail. I have had this piece on and off the car several times, and it's possible that I bumped it and cracked something a while ago.
And to think that I always used to worry about the hose pulling out of the press-fit ring. Turns out that's the strongest part of the coupler.
Anyway, I called Speedware, and Kelly is out all week. Something about having a baby or some such nonsense. I didn't realize men could have babies, so I don't get what all the fuss is about... Anyway, ordered a new one from Chance @ DevilsOwn, which, God willing, will be here before I have to move across the country.
To answer Paul, here's my take: WI is something that you can add to an otherwise well designed and well tuned engine to turn it up to eleven and make it give you just that little bit extra. In fact, I do run a front-mount intercooler. And my fuel and ignition tables are pretty well dialed in. But back when I first installed the system, I found that, without changing anything else at all, WI gave me back at least
5° of timing at the upper end of the map- I was previously right on the edge of audible knock, and I'm now running more timing and still have some margin.
Regardless of how efficient your intercooler is or how perfect your fuel tables are, by adding WI you will be able to increase the boost just a bit more, or advance the timing just a bit more, or even just get a little safety buffer against a tank of bad gas- especially out here in California where the best we can get is 91 octane that contains up to 20% cat urine by volume.
The key is to make sure that a failure of the WI system (which, quite frankly, does contain a lot of cheap moving parts) does not cause the destruction of the engine. It's not difficult or expensive to design the system in a properly fail-safe configuration, you just have to know to do it in the first place.