Does the job...don't notice any noise any more!

I just bought a Yakima rack off Craigslist for my 2005 Subaru WRX Wagon. My car does not have a moon-roof, which I've heard can make the noise a big more noticeable (makes sense), but despite this I was noticing that awful vibrational wind sound around 35mph. I read a number of reviews and was concerned about gas mileage impact of getting one of the fairings so figured I would try this option first.

Amazingly simple and effective. Since I've put this on I haven't noticed the rack once and I've been on the highway a few times around 70mph. Great product! I haven't noticed much impact on gas mileage yet, but it will take some time to evaluate this because of the nature of highway/city mix, etc. First full tank of gas with this thing was right around normal though, so it definitely doesn't have the sort of impact I've heard the fairing can have (~20% or up to 5mpg in my case).

Simple and Effective
When I first purchased my Yakima system, I considered getting either a faring or the WindJammer, but decided against it thinking to myself "How bad can the noise be?" Well, around 35-45 mph, the humming noise coming from the bars was very loud. (Almost as loud as a typical vacuum cleaner.) Above and below the 35-45 range, the noise wasn't as bad, but still very noticeable.

After reading other reviews, I decided to give the WindJammer a try. Honestly, the windjammer looked as unimpressive to me in person as it did in pictures online, simply a tear-drop shaped piece of plastic and I found myself skeptical that it would really work. Installation was a breeze, simply unsnap the edge of the WindJammer, slip it over the bar, and snap the end back in place.

After going out for my first drive, I was a believer in the product. I was amazed at how much of the humming noise this cut out. At high speeds (65+ mph) the wind noise becomes pretty apparent and starts to get a little bothersome, but it is better now then before the WindJammer.

Another very slight issue that I had was that when going through a car wash, the spray hit the WindJammer and spun it down, hitting the roof of my car. No damage was caused to my roof and I simply had to rotate it back into place by hand to correct the problem. Honestly, it surprised me a bit the first time I was washing my car and hit the then mysterious "thunk", but now I don't worry about it at all.

This is a great product that works well. I didn't want something as large as a faring on the front of my roof and this was a good solution to my problem.

Questioning the Yakima WindJammer vs. the Fairing? The WindJammer also helps cut wind noise...with a little tweaking
I had the Yakima fairing mounted on my roof rack for ten years, and while it eliminated wind noise over my Yakima bike rack, the fairing actually decreased the fuel mileage of my car by almost 20%!

Tired of paying extra at the pump, I removed the fairing, but quickly got annoyed of wind noise over the Yakima's round roof bars above 55mph. I found the WindJammer, tried it, and it works. My fuel economy is back to normal and wind noise is reduced (but not as much as the fairing).

Also, it seemed my round Yakima roof bars were actually too thin for the WindJammer (it clamped closed, but could spin around the bar freely). So, I added a small strip of 1/8" thick adhesive foam to the inside of the WindJammer to keep it snug.

The WindJammer is a little pricey for what it is (a piece of plastic), but in my view, it's a much better option than the fairing.

Such a difference!
I tried this before the fairing, because it's cheaper, smaller and simpler. We had a really disturbing noise before, and the noise is practically gone with the windjammer. From others reports though, it seems like success varies from vehicle to vehicle. One concern was that it's easy to steal (ziplock style closure). I superglued mine shut, and slide it off the bar if I need to remove it (which I never do). Definitely worth a try!