I could only find one video that a front sway bar was installed in a 340i. Yes, he had to lower the front sub-frame.
What I am not sure is if the 340i suspension is similar to the M440i.
Because on a M4 front sway bar replacement does not involve dropping the subframe.
Last edited by jliuod; 11-15-2023 at 08:26 PM..
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