F-Sport Sway Bars - Got Them - Here's My Opinion
12-10-09, 06:23 AM
#76
^^^^Well, not quite true. The stock sway bar specs for the IS250 and the IS350 RWD models are the same. You are correct that just a change of the rear bar does give the most benefit for both the models.
See the pdf I compiled for sway bar dimensions:
Lou
See the pdf I compiled for sway bar dimensions:
Lou
12-10-09, 09:35 AM
#77
Because fsport.com pretty clearly states significant stiffness differences between 250 and 350 by putting the same F-sport bars on either, which tells us the stock bars are significantly different.
(the site currently has 2 of the numbers incorrectly transposed, but even if they didn't the %s are still very different between 250 and 350)
12-10-09, 02:00 PM
#78
^^^^My source is Lexus Corporate, though it took much time, and a couple of false starts to finally get the correct answers. Next I checked my local Lexus dealer's parts dept. While they did not have the sway bar dimensions, the did have PNs, and I confirmed the PNs for all ISX50 rear drivers were the same.
Lou
Lou
12-10-09, 06:23 PM
#79
^^^^My source is Lexus Corporate, though it took much time, and a couple of false starts to finally get the correct answers. Next I checked my local Lexus dealer's parts dept. While they did not have the sway bar dimensions, the did have PNs, and I confirmed the PNs for all ISX50 rear drivers were the same.
Lou
Lou
Any explanation for the published numbers at fsport.com (a lexus web site) that disagree with yours and state 250/350 aren't the same?
I'd probably give a call to Lexus of Westminster or Sewell Lexus, either ought be able to get you a front bar a whole lot cheaper than $499 (I paid a fair bit less, shipped, for both bars, from Westminster)
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