Champale said:Hello isrboss - My Bosses (first a '12 and now a '13LS) have been wonderful cars, more fun than just about anything I've ever driven, but even with the upgrades I had made, I never thought that the rear axle seemed as planted as I would have liked. The Steeda UCA was the final piece of the puzzle for me and I am super happy with it (and the Steeda bracket). The traction in a straight line and in corners is markedly better.
Is the car worthless without an aftermarket UCA? Of course not. But . . . it made a huge difference in how planted rear tires feel now. I think that anyone who has changed out their UCA for an aftermarket one, be it Steeda, BMR, UPR, Roush, etc, would agree with me.
Hi Champale, I didn't even consider that the UCA helps with tuning balance. I have KW dampers along with most of the common rear end parts, except UCA and I now have the Boss balance more toward tight. Prior to going one setting stiffer on the front bar, I had a loose setup. Just by inspecting my tires and taking temps across them give me the info I need to say I'm planting the rear pretty good. Were talking road course track days, right?