I am planning on getting H&R lowering springs off ebay. Seems as if the cost to add springs to my old QX56 and 05 Cayenne S are completely different but I wouldn't think the process and labor time is much different. Just curious for those who have had springs installed.. What do you think labor cost should be?

 

Your are probably looking at around $400-$600, depending on the shop.

 

$400-$500 is a fair guess. Some cars can be more expensive to lower if they have electronic shock systems or self leveling suspension but figure about 3-3.5hrs to do it. Also make sure to get an alignment after the install.

 

ditto... make sure to check the camber settings so your tires wont get eatin up quick.