IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Rear Diffuser / Lower Cover replacement

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Old 06-17-24, 11:19 AM
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Bechtold
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Default Rear Diffuser / Lower Cover replacement

Hey has anybody been under the car to be able to see the clips/plugs that hold the "lower cover" in place at the top. Is that something you can get to from underneath the car or does the bumper cover have to be removed to access them. The ones on the sides seem easy enough to get to from what I could see. Any help would be appreciated.


I pulled the picture from this site...
https://parts.longolexus.com/oem-par...ver-5210853100
Old 06-20-24, 09:24 AM
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Bechtold
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Moved - Anybody got some info here?
Old 06-20-24, 11:03 AM
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NCIS350F
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Gotta remove the bumper cover to get to all of the clips.
Old 06-20-24, 02:19 PM
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Bechtold
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That is what I was afraid of. Anybody got video of pictures of the removal process?
Old 06-20-24, 03:03 PM
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Nexus713
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I found video from NIA website (how to install their aftermarket diffuser) - first half shows how to remove it.

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Old 06-20-24, 03:44 PM
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NCIS350F
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Oops, disregard my post. I didn't realize you had a newer 3rd Gen.
Old 06-20-24, 06:48 PM
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Bechtold
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No problem, either way he never takes off the bumper cover, he just tries to get to the wiring to tap into which I won't be doing. I need to take off the factory diffuser, I'm not adding anything to it.
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Old 07-14-24, 09:14 AM
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I need to do this. What did you find for replacements and did you find the cover removal process?
Old 07-14-24, 02:14 PM
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Bechtold
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I have not found anything for 2021+ IS. Previous years of 3IS I can find a bumper cover removal video but that does not help on the cover if it is needed or not. I have not had time to investigate as I am spending a week in Chicago so I'm on vacation mode.

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