Are /6 torsion bars the same as 318?

Like was said, you don't have, as in HAVE to change them. But with a teener in there, you probably gained about 100 hp.Your driving style will change.You will very quickly find the limits of that 6cylinder suspension;hopefully before you crash it.
So sooner or later you are gonna want to upgrade.If you are not tapped out, now is the best time, before you get bent.