In nj they test the cars suspension but I dont know exactly what they look for. I found this after searching and here's everything they test in nj:
"From the NJ MV Services:Inspection program details
To meet state and federal safety standards, MVS tests steering, suspension, horn, wipers, window glazing, lights, direction signals, red rear lights, mirrors, brakes and hazard signals and the catalytic converter.To meet federal Clean Air Act standards MVS inspects the vehicle's emissions by a licensed inspector.The test uses a dynamometer that allows the car to accelerate and the tires to spin without the vehicle actually moving. The inspector than tests the emissions with a probe as s/he accelerates the engine to 15 mph. A computer analyzes the emissions to reflect the car's make and model.
http://www.state.nj.us/mvs/dm9...s.gif"
If I got Eibach springs and replaced the struts with gas ones, will I fail the suspension test because my suspension is too stiff? Anyone ever go through this?