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Discussion Starter · #1 ·
(referencing the XC90 forum)

If you have upsized 20" - 22" wheels, I'd recommend a strut tower brace (XC60 and XC90 use the same brace). It makes a noticeable difference in steering directness/feel, especially over less-than-perfect pavement.

The upsized wheels are heavy and spreading the horizontal suspension loading force to both strut towers improves the chassis rigidity and steering. You probably won't notice much of a difference in cornering performance, though, thanks to the double wishbone setup.

https://www.ebay.com/itm/2017-2019-...-Upper-Strut-Tower-Bar-Brace-STB/132728337525

https://www.vivaperformance.com/strut-tower-brace-volvo-xc60-ii-xc90-ii-1/
 

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Nice, I was wondering if anyone had done this since it is one of the polestar upgrades. Any troubles installing?


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Interesting...can anybody find any better pics of the Via Perf. model? The hinging of the ebay bar is pretty lame, ideally the strut bar shouldn't just maintain distance between the two strut towers, but put strength into keeping the angles consistent as well.
 

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Discussion Starter · #4 ·
Any troubles installing?
Easy installation. Just be sure to not over-torque the bolts (20 ft-lbs).

The hinging of the ebay bar is pretty lame, ideally the strut bar shouldn't just maintain distance between the two strut towers, but put strength into keeping the angles consistent as well.
I'm running the ebay version, which can be had for much less than the asking price. The SS flat bar is very rigid and the hinges are irrelevant because strut braces don't transfer vertical force to the opposing tower. Additionally, vertical forces are minimized in a double-wishbone setup.

 
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