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Eibach sways for 14+ IS fit?

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Old Nov 4, 2024 | 06:39 AM
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Default Eibach sways for 14+ IS350 fit IS500?

Hi all, would these fit on the 22+ is500? Is the rear sway accessible or somewhere painful like above the subframe? Thanks for your help!

Lexus IS300 / Lexus IS350 / Lexus IS200T ANTI-ROLL BAR KIT (FRONT&REAR)

Part #: E40-59-004-01-11
Front & Rear Sway Bar Kits

2018-2025 Lexus IS300 F Sport Sedan 2.0L Turbo RWD XE30
2014-2025 Lexus IS350 F Sport Sedan 3.5L V6 RWD XE30
2015-2017 Lexus IS200T F Sport Sedan 2.0 T RWD XE30

Last edited by gsmith28; Nov 4, 2024 at 11:43 AM.
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Old Nov 4, 2024 | 12:54 PM
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For those who care, I called Eibach and they have not confirmed fitment yet but suggeted I cross reference part numbers (duh). At quick glance, is350 and 500 swaybars share part numbers so should fit…

front sway: 48811-30810

rear sway: 48812-53150
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Old Nov 4, 2024 | 05:46 PM
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Originally Posted by gsmith28
For those who care, I called Eibach and they have not confirmed fitment yet but suggeted I cross reference part numbers (duh). At quick glance, is350 and 500 swaybars share part numbers so should fit…

front sway: 48811-30810

rear sway: 48812-53150

Did you find out any info on how much thicker the Eibach sway bars are compared to OEM? I didn't see it on their site.
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Old Nov 4, 2024 | 06:43 PM
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Originally Posted by Phresh2010
Did you find out any info on how much thicker the Eibach sway bars are compared to OEM? I didn't see it on their site.
best I could find digging around the internet is the front is probably ~27mm and the rear 20mm, but the eibach sways are tubular so it’s still kind of apples to oranges.
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Old Mar 26, 2025 | 12:34 AM
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Originally Posted by gsmith28
best I could find digging around the internet is the front is probably ~27mm and the rear 20mm, but the eibach sways are tubular so it’s still kind of apples to oranges.

Did you install them?
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Old Mar 27, 2025 | 06:39 AM
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I have not tried them yet. I upgraded to coilovers and want to get the car out on track again to see how much these are needed. Additionally, i might move to a square tire setup which would probably change my needs ie only the front bar.
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Old Jun 9, 2025 | 04:52 AM
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I am definitely interested. I just got my IS500 a week ago and have not had a chance to get underneath it and check things out.

On the 2G IS350 the install was a breeze. I am hoping it is the same on the IS500.
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Old Jun 9, 2025 | 11:33 PM
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Originally Posted by kenji211
I am definitely interested. I just got my IS500 a week ago and have not had a chance to get underneath it and check things out.

On the 2G IS350 the install was a breeze. I am hoping it is the same on the IS500.
3rd gens need to drop subframe, I forgot if it is front or rear that needs to be dropped but is not as simple as 2nd gen
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Old Jun 10, 2025 | 05:45 AM
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Originally Posted by 604GSE21
3rd gens need to drop subframe, I forgot if it is front or rear that needs to be dropped but is not as simple as 2nd gen
Going off of what I remember when I was working on lowering springs install, it's definitely the rear sway bar that would need subframe dropped. That thing is tucked in very tightly.
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