FYI... Now that people are starting to put aftermarket wheels on new G's. Some wheels don't work with TPS units.

If you can't run TPS then these and they really do work. I've got them on my wheels. Solid chrome plated brass, they look good, and the red LED in them blinks when your tire pressure drops 4 lbs below whatever they are set at. Makes it really easy to walk around your car and see if you have a low tire.

http://www.pickupspecialties.com/Air..._valve_cap.htm