Quote Originally Posted by Dave Severson View Post
I've done a few, the one complete car I did was about 5 years ago. It's got almost 20,000 miles on it now, and still no problems with the original components. A word of caution, there is some real junk on the market these days for controllers and compressors! Stick with the quality parts and you shouldn't have any problems as long as the install is done correctly. The car I did used Shockwaves in the back, Firestone bags in the front in a Heidt's IFS that was built for air ride, and a parallel 4 bar in the rear with Watts linkage...
My chassis currently has an older Heidts front crossmember. Progressive has the necessary components to upgrade to tubular upper and lower control arms for use with either bags or Shockwaves. Can somebody outline the pros and cons of one over the other? Again, I'm leaning towards the Shockwave system.