
I love traveling in my SUV, but the biggest problem comes when I have to change a flat tire. Not that I'm not strong or lack in tire changing expertise, it's just the chore of fitting the jack properly that gives me the jitters. As a young novice, I once had trouble fitting the jack correctly and in a bid to do the job fast so that no one would think I'm a fool, I started unlocking the wheel. Unfortunately just as I was switching the tires, the jack collapsed and I was put in a totally embarrassing position. The Exhaust Car Jack seems to be a simple enough solution for people like me who have been scarred by previous situations like this. This jack will be able to lift your vehicle within half a minute when you connect it to your exhaust and turn on your engine. The exhaust will get the bag inflated, lifting the vehicle's frame 17" off the ground. And since it features a one-way valve, the bag remains inflated even after the engine has been turned off.
The Exhaust Air Jack is meant for rugged off-road use and has been tested and proven to work in mud, snow, and on uneven ground where a regular jack cannot. It costs $129.95.



Source
http://www.newlaunches.com/archives/exhaust_air_jack_to_the_rescue.php