Quote:
Originally Posted by young1
I have a bit of steady-state understeer in my M2 after installing slightly wider P4S tires (268/285) on stock rims. Previously, it was slip and slide power-oversteer fun. But with the wider P4S's in the rear, the front tends to run at a much greater slip angle than the rear. And the power can be easily put down.
Picked up a Dinan rear bar that should allow a slight spring rate increase in the rear that should allow tuning this out (hopefully to full neutral where both front and rears slip at similar angles in steady-state).
However... there's a local mechanic down the street from where I work, and he indicated the BMW manual calls for dropping the rear sub frame to install this(!). 8 hours. I figured it would be an easy job that wouldn't cost a lot to keep me off my garage floor.
So... anyone have experience with replacing the rear sway? And does the sub frame really need to be unbolted/realigned??
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I got my the same Dinan front and rear sway bars too. Actually for the M2, it requires dropping the rear sub, so he's absolutely correct. However, it should take about 4 hours or so.