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Replace AVS with F-Sport Shocks

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Old Aug 15, 2014 | 01:51 AM
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Default Replace AVS with F-Sport Shocks

Hi to this subforum!

Just purchased a 2009 GS450h with AVS and I'm thinking of upgrading the handling ability of the car.

Specifically, I want to replace the stock shocks with the F-Sport shocks. I'm not thinking of lowering the car so lowering springs and coilovers not an option for me.

I know that replacing the stock shocks means I lose the AVS function but my question is : is this swap even possible or does the AVS hardware physically prevent installation of the F-Sport shocks.

Has anyone on this forum done this actual swap in the past?

Thanks in advance for any advice you can give.
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Old Aug 16, 2014 | 10:58 PM
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I'm not sure if the 450h suspension cross references. I was told it doesn't by a service advisor (long story)....

You simply lose AVS functionality, the unit is removed from the top of the struts and that's about it.

GL!
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Old Aug 17, 2014 | 03:46 PM
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The Avs is just disconnected from the top of the strut but does not effect the car besides that
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Old Aug 18, 2014 | 02:00 AM
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Thanks to everyone who answered.

So is it confirmed that as long as the AVS is disconnected, there should be no physical/hardware issues preventing F-Sport shocks from being installed in an AVS equipped GS?

I wouldn't want to have the F-Sports shocks shipped all the way from the US only to find that F-sport shocks won't even fit in the first place.
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Old Aug 18, 2014 | 06:48 AM
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The AVS is a little motor mounted to the top of the strut tower that turns a screw on AVS-compatible struts. If you install incompatible struts, you just remove the motor and disconnect it from the wiring harness, and put it in a box for later. I don't know if disconnecting the motors will cause a check engine light or not.

If you want to check it out, just take the motor off and have a look - you will see a hole where the screw adjuster comes through the top of the strut tower. The rest of the mounting plate is the same as the F-Sport struts so they are compatible.
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Old Aug 19, 2014 | 01:47 AM
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Originally Posted by rjk
The AVS is a little motor mounted to the top of the strut tower that turns a screw on AVS-compatible struts. If you install incompatible struts, you just remove the motor and disconnect it from the wiring harness, and put it in a box for later. I don't know if disconnecting the motors will cause a check engine light or not.

If you want to check it out, just take the motor off and have a look - you will see a hole where the screw adjuster comes through the top of the strut tower. The rest of the mounting plate is the same as the F-Sport struts so they are compatible.
I can assure OP 10000%, the AVS removal will not set off a CEL. Whether the F sport struts work or not, that's dependent on the 450h suspension system. Other than that, a removal of AVS doesn't do anything. I even flip on and off the avs switch sometimes to see if it'll do something.

GL!
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Old Aug 19, 2014 | 07:07 AM
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Avs in sport mode makes the car even more harsh over the pot holes here in NY. I never felt the need to activate it. On a perfect highway it does stiffen things up a bit, but I would gladly give up the sport setting to more plush setting next to normal. Car is a bit too stiff over bad bumps.
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Old Aug 19, 2014 | 01:10 PM
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Couldn't agree with you more there tbilisi .

Some folks enjoy the perkiness of the GS's built suspension though lol.... I don't
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Old Aug 21, 2014 | 06:33 AM
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Originally Posted by XxGoKoUxX
Couldn't agree with you more there tbilisi .

Some folks enjoy the perkiness of the GS's built suspension though lol.... I don't
I love how the car is tight and all, but I'm sure you know, the 430 with 18s on bad roads is just harsh.
On good roads I have no complaints, I even put it into sport mode just for fun, but how often does that happen.
I'm not one of this people who just goes thought the bumps like its a leased car. I slow down. Unload the brakes before hitting a bump, I almost feel the pain for the car when it gets bad on the road... Guess I still love her.
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