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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d. is the premier BMW Forum on the internet. Registered Users do not see the above ads.
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Old 07-07-2004, 05:51 PM   #1 (permalink)
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boston_bmw46 is an unknown quantity at this point
I'm considering getting a 04 330xi with sport package. I heard that not having the fold down rear seats greatly improves the torsional rigidity and the ride? How noticeable is it? And does it really outweigh the convenience of having fold down rear seats?
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Old 07-07-2004, 07:30 PM   #2 (permalink)
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peterkulesza is an unknown quantity at this point
sounds bogus. the chassis points which need firming up are the shock towers in the back. seats are flimsy, and are in an area of stiff crash box (front of the gas tank), so i really doubt that anything can imporve the chassis at this point...
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Old 07-07-2004, 08:40 PM   #3 (permalink)
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Relevart is an unknown quantity at this point
Sounds to me like urban legend.
Nobody puts an armor plate behind the rear seats for the sake of stiffness. The reinforcement behind rear seats is for the sole pupose of supporting back of the seat, it will buckle in a split second if it will see lateral load associated with torsional stresses.
If you're looking for torsional stiffness put shock tower braces front and rear and undercarriage brace...
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