exhaust pipe air jack? wtf?

[SixSquared]

Seems like a pretty damn brilliant idea to me... it works in snow, mud, tall grass, uneven ground, all the places a regular jack is a nightmare. I wonder if it has any effects on your engine, though, what with all the backpressure... Cool as hell idea though... no more worrying about jacks fitting under lowered cars...

http://www.complex.com/blogs/2008/04/22/air-jack-has-us-pumped-to-fix-a-flat-tire/#more-11941

[DevilK9]

These have been around for a while in the Off Road community. It operates off a bypass valve and/or ventilated compression system to avoid back pressure issues. These things are a godsend when you're out in the boonies and your HI-LIFT won't fit between you and the rock you just dismounted your tire on.

I did read that these are warranted pretty heavily so that you'll only have to buy one per lifetime.

That's my $0.02.

[Elbow]

Just be cool and buy real air jacks.