[Guard 5.0]

Air suspensions, as stated above, are more about show than go.
It also depends a great deal on how much travel (from top to bottom of the bags) you plan on as well.
You are adding a BUNCH of very high pressure lines and fittings that are going to need regular maintenance and checking...........and as stated, a leak anywhere in the system and you will be lucky to make it off the road to a parking spot before your car becomes immobile.

 

[Guard 5.0]

How long does this suspension set up usually lasts? How do you properly maintain all the lines and fittings

Start with the best quality bags, lines and connections that you can get. Make sure the shop that installs this system has done it many times --- successfully.
If there are other owners with air suspensions in your area that you can talk with, they can steer you well as to equipment and shops to go to --- as well as those to stay away from.
Why are you thinking about going this route, and what do you want to use your air bagged car for?

 

[Guard 5.0]

See that makes sense but I wonder if the spring rates change that much if you aren't lowering or raising the car. Also super cars use constantly adjusting spring rates but those change methodically for the conditions not because they get randomly compressed.


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If you are referring to magnetorheologic (sp?) suspensions.........they do not change "spring rate". They monitor the road and constantly change rebound and compression rates of the shock absorbers --- two totally different things when it comes to the handling and ride.
Interestingly, I read the other day that these suspensions are getting so sophisticated that they can change the shock's character every INCH at 60 mph!

 

[Guard 5.0]

Well air has less psi the lower it is so it is actually softer from what I understand. This is why I'm confused about it haha.

And sorry for my incorrect use of vocally previously but that was what I was trying to refer too.

I think that what others here were trying to say when they referred to "sloppy handling at the track." If you lower your car thinking it is going to lower your CG at the track, you've also decreased your suspension's ability to control the weight of the car with softer bags. Lowering your PSI and the body of the car is for show, not go.