Quote:
Originally Posted by Turbo_Bimmer
Guys, when you installed your rear bigger sway bar, did you feel a noticable improvement to reduce understeer in favor of a slight oversteer?
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That's the way it worked on my E39. I did the rear first and drove it that way for ab a year. After I did the M5 front, I adjusted the rear Dinan bar from middle to most aggressive. It was VERY clear- even with slightly larger rear tires that oversteer was just a right foot press away.
Kind of hard to say in the E53 bc I did both front and rear at the same time. Also, the 315's on the rear pretty much take out the oversteer. XDrive plays a part as well. It's not as quick as physics, but it will catch a good oversteer.
On a top heavy car like the E53- *especially* the facelifts with those huge, heavy sunroofs- the thing I noticed is reduced body roll/sway. I had an early production '04 with a small sunroof and now have a late production with the larger one. BMW did performance no favors with the larger sunroofs.