When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The biggest benefit would be for camber correction when lowering. Other than that, maybe a little bit of handling. With stiffer arms and urethane bushings, the rear will feel tighter. Add some trailing arm bushings, and the rear will be very planted.