my friend just bought some 18s for his gsx eclipse and has the stock 16" chinese star looking wheels. they are a 5 lug but idk if its 5x100 or 5x114.   anyone know if they will fit a cavalier?
13 psi and climbing......
 
 
5x114 i believe 
Thanx Charles
 
one way to find out....try it and see if it mount up.
 
 
5x114.3
doesnt take long to google it
 
 
Don't foget off-set.  If I remember correctly the are a -40mm offset.  If you car uses a different offset those wheels will cause hub/bearrings to fail over time.  Something to think about.
PAX