Mine had a S13 bar in it, compared to a stock ceff swaybar, the part where it bends around the sump area is a few inchs shorter than A31, hence the s13 just touching the sump.
I would be still using it if it didnt foul my 6.5 ltr sump, the stock ceff swaybar also hits my sump
Kris has a S13 swaybar in his A31, post so pics up for us man.
Toffy runs a 32 GTR front swaybar with no hassles?