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      07-19-2018, 01:42 PM   #4
02Pilot
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Drives: 128i
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Location: NY

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The importance of the sport seats cannot be overstated. As noted above, the only real suspension difference is the rear sway bar. Beyond that, it's incremental.

It's easy to replicate the suspension with bolt-on parts, and the M3 arms and rear subframe bushings (I just used the Whiteline inserts, which are simple, cheap, and still a big improvement) can be used to improve it further without going crazy. But if you do all that you'll quickly realize why the sport seats are so important.
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