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Discussion Starter #1 (Edited)
I noticed an unusual plastic groaning sound when in low speed tight turns on the 2006 Boxster S. I lifted the front end and found that, on both sides, the plastic part of the brake cooling duct which 'rides' the lower control arm catches on the hub casting once it goes close to full lock.

I haven't remediated this yet in any way and it's still making noise as I drive and turn slowly, such as into or out of a parking spot or my garage. It's kind of annoying. Is there a typical remediation for this other than just trimming some of the plastic? Perhaps mine have been re-fit poorly at some point? Just looking for thoughts before I cut/mangle these.


Video of the plastic panel catching the hub casting:
https://youtu.be/15EBciDcL5o
 

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the brake ducts are not supposed to touch any steering components.
they do fit without cutting and perhaps have moved or were installed incorrectly.

btw the video is very short but it looks like a gt3 brake duct.
 

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I agree, looks like either they are positioned incorrectly or simply the wrong part... next time you get under there, post back with the number on the air duct.
 

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If you have a cutting tool that can reach the rubbing area, just cut it off without taking the duct off. If you take it off, good chance it may not go back on as it looks to be for some other Porsche. Check the other side to see if its the same part. GT3 brake ducts for the Cayman front are relative inexpensive and actually fit without rubbing and have a larger and flatter end that forces cooling air onto your brake rotor.

265428
 

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I hope I haven't confused anyone with my earlier statement.
the observation on the gt3 duct is that it may not be the original duct and could have been installed incorrectly.
even if the front ducts are from the gt3 - the fronts fit all 987 as far as I'm aware. they're on my car too :)
 
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