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      03-15-2011, 05:21 PM   #3
doughboy
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Drives: 2016 M6 Gran Coupe LCI
Join Date: Jan 2009
Location: UK - Midlands

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Yup, most important on a e9x is putting a thicker REAR bar to reduce the inherent understeer designed in.

Most combos give a slightly thicker front bar with a MUCH thicker rear bar to shift the bias rear.

If you just upgrade the front you will make it more numb and understeery.

I had the Hartge bars, which were +1mm front and +8mm rear, note the rear almost doubled in size from 13 to 21 mm.