I'm looking to upgrade my EK Civic with a sway bar. From what I've seen ASR do a good 24mm sway bar and reinforcing kit with all the needed hardware. I was also thinking of doing the lower control arms at the same time but was wondering if they would even be worth the extra cash. I'm unsure how much LCA's would even change the car at all other than just style points. Plus if they do affect it would it be worth going for the ASR's over Hard Race's as they are almost double the price.

 

New OEM rear control arms are still available and have the provisions for the sway bar at about 120 each per side.

 

$120/each? Ouch.
Make sure bushings are good, keep geometry of suspension. Bushing material dictates harshness on a daily car, feedback on a track car.

Any rear sway bar will help. I ran a cusco for many years and felt balanced.