as above really i have a s2 running 180bhp and its abit of a beast when giving it some right foot. would a strut brace make much difference to the handling???

 

Yes they do make a very noticeable difference esp when going mental, since fitting one to the astra it sits flatter on the bends and is much more stable under heavy braking, well worth doing imo, although it has bilstein/eibach combo as well.
Any car even rwd that I've fitted them on has benefited.
tabetha