Quote:
Originally Posted by freedomfries
I installed the M3 guide rods and I'm surprised at the difference they made. It's hard to put into words, but the rear feels more solid and connected under acceleration and braking. The rear also feels less harsh and crashy, possibly due to the lack of bushing windup with the inner balljoint? Overall, I'm very happy with the upgrade, especially considering the low cost
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Exactly my experience with them. In the famous thread on rear M arms on the 1er site, fe1rx calculated the effective reduction in spring rate of both M arms was about 70 lbs if I recall correctly. so we got a slight drop in spring rate but more control.