Can you give me details on these? Where are they located on the car exactly? If I bought four offline can I install these myself, as I am a novice and not a professional or do they need to be professionally installed? They sure are expensive at this one place I happened to be in starting at $85 each where I found online $30 each but would have to install them myself. Please help me out and let me know.

 

yes they are a pita. And expensive, I doubt you can install them yourself, you need a tire changer machine.

 

they are located in the wheel stems.

 

Damn that blows. What exactly is a pita?

 

pain in the azz...