I came across this by accident and could not find anything about these guys in the archives or a current search. They have full kits for the Fiero or just rear air struts available. Now, I'm sure this kit requires some mods and is not just a bolt-on but I could be wrong. http://www.x2industries.com...22.html#.WsjrprW5uUk
A number of years back I looked at installing a full air ride system on an 87 but decided I had better uses for $2k+. Therefore,I do not have a true air suspension system on a Fiero but do have an air assist setup on the front of an 87 Mera. I used a Fiero Store lowering kit that was supposed to have a one inch drop, but it ended up being nearer two inches. I kept scraping my nose just getting out of my driveway, at gas stations, and on speed bumps. To correct this I added a compressor and reservoir behind the trunk and installed two auxiliary air shocks up front. Obviously had tubing to connect the reservoir to the shocks and repurposed the defroster switch to add/lower the pressure in the air shocks (also added a pressure gauge in an A pillar mount with some other instrumentation. Pumped up to 120 psi I can get out of the driveway and even drive up on a tilt bed trailer without scraping. Somewhat of a pain to add but it solved the issue and has worked for the last five years.