Hello, the benefits of the end links is that they are ajdustable for corner balancing, and that they are stronger. If you just use this car for daily driving and do not track the car you should be fine with the OEM end links. The sway bars will give you a lot less body roll in the turns. You can always do the sway bar and spring package together to give your car a better stance. The drop on our springs are 1" so you do not lose the suspension travel like you would with some other 1.5" to 1.7" drops. If you have any questions feel free give me a call or shoot a PM. Thank you.
http://www.hotchkis.net/2010_camaro_ss_stage_1_tvs.html