I have just purchased a 2002 Z28 (20,000 miles on it) and have the chance to put on new kyb agx shocks at no cost.If the stock shocks are as good as kyb agx. it seems stupid to take off perfectly good shocks. What brand are the stock shocks?

 

Stock shocks are made by DeCarbon, and while the KYB AGXs aren't the best shock in the world, they are still probably 5 times better than then junk stock shocks. I would definitely do it, even if I had to pay for installation.

 

What about Napa's sensatrac's? How much better are they?

 

Never heard of the Sensatrac's. However, I doubt that they are very good shocks but I could be wrong. I personally wouldn't put them on my car.