Way back when.... they used different bushings and there was issues w/ noise...this has been rectified for some time now, the kits have come with Energy Suspension Bushings and they are very nice and much better than stock. I think we still have a few sets left at the Group Buy Price! http://www.srtconnection.com/forums/showthread.php?t=8021
Man.... Took my car out on a little twistie road called "Carbon Canyon". It is the 142 Hwy running from Brea to Chino Hills. I was easily able to handle 2 to 2.5 times posted turns, and this road has a couple of hairpins (one is a sharp downhill hairpin) and tight s-turns. Tight u-turns are almost perfectly flat....no nose dive. The more I drive the more I like these sways. DO NOT do your shocks and sways at the same time. I had been delaying getting the sways for this purpose. You will be thinking all the performance comes form the shocks. Hotchkis ROCKS....er DOES NOT ROCK....and it sure DOES NOT ROLL......lol