I dont think the LCAs perform better...no real difference from the original's feel.
GM redid the LCAs to address problems with the boots cracking/splitting, and then having ball joints going bad from the lack of lubricant and the intrusion of dirt & gunk. I thought most problems ppl had was from the LCA bushing going bad on them.
Mebbe they increased the size of the ball joint a tiny bit, but don't quote me on that one.
09 G8 GT in Stryker Blue Metallic
Go: Vararam CAI, SLP Headers, ATI 25% UDP, Magnaflow 12468 mid-muffler, PM-FL Axleback & FE3 Shocks N Struts.
Tuned by MAC Autosports of Parker, Colorado
Show: Little Trees US Flag Vanilla Scented Air Freshener; SLP Firehawk wheels...
Best 1/4: 13.969 @ 102.70mph @ Pueblo Motorsports Park
DA of 3921', with an actual elevation of 4662'