Thread: Roll bar help
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      10-08-2012, 10:06 AM   #5
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Drives: 2017 F30 340i
Join Date: Feb 2011
Location: Blue Bell PA

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I have the front and rear M3 bars (not sure E90/E92/etc). The rear is too stiff on the track which makes it tricky for a less experienced driver; the car will oversteer before it understeers.

We are RWD; just use the gas pedal to bring the rear around, you don't need a stiffer sway bar to reduce grip back there. Only on FWD cars does it make sense to do a stiff rear sway, they don't have many other options to help bring the rear around.

Edit: also it hasn't been mentioned, but installing the rear sway is expensive because it requires lowering the subframe + mandatory alignment. I would replace my M3 bar with the stock one if it didn't cost so much.
2017 BMW 340i (F30) - M Sport, Mineral Gray/Coral Red, 6MT; Dinan exhaust
Past: 2011 335i (E92) - M Sport, Le Mans Blue/Black, 6MT

Last edited by CJ421; 10-08-2012 at 10:23 AM.