Anti roll bars

[Ivan141]

A big anti roll bar will really stiffen the car up, but there are drawbacks:
Cornering capability for street use will be compromised.. the anti roll bar will cause both tires to skip when you drive over irregularities in the road, thus causing a loss of grip. When you have less anti-roll bar effect the suspension operates a bit more independent on both sides and can handle these irragularities better.
Personally I think big anti roll bars are more fit for track use, but then you could also go for stiffer springs. For street use a slightly bigger pair of rollbars is a worthwhile option to reduce roll while retaining the comfort of softer springs. Also keep in minde that the rollbars will effect the tendency to over/understeer, if you only change the front one you might be introducing more understeer.