if you've got a 2wd car then you won't feel the benifits as much as you would in an escos or 3 door beacuse of the big bit of metal that is sitting above the strut tops to stop the body flexing as much

if you want to stop things from flexing then, as sugested, get somethng to triangulate everything together, but this won't be practical or pretty (unles it's bling bling) really on a road car as you will have to cmopromise the boot floor