Quote:
Originally Posted by MPOOR
you should get it ~ OEM rear diff bushing is soft as a Tofu, getting ready to rupture eventually. OEM rear diff bushing life reduced significantly on Tuned M4s and M3s. Go with Black Series !! Total lock down rear end feel with much immediate forward momentum when you open up the throttle .
One of the best investment.
I had to replace my Soft ToFu like OEM bushing.
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Did you replace the bushing yourself? How difficult was it? I have been considering this upgrade, but not sure if I want to tackle it myself or bring it in to BMW.