The TOM'S brace has the same part number for the 3GS as the 2IS (52297-TGE20).
And, yes, I can see that the two designs are clearly different... but the likelihood of the mounting points existing on the 3GS, would seem, very high.

What are the chances the F-Sport Chassis Brace fits the 3GS? I've searched a bit, and from what I've seen, there hasn't been ANY dialogue on this subject.

 

I think the F-Sport is only for the IS and the top one is for the GS. I was going to get this but the cost to install was to crazy. So I gave up.

 

What were the costs, if you don't mind me asking?

This is the bottom of the IS. I haven't found a pic of the bottom of the GS, but I'll keep looking.
If those outboard chassis rails are in the same place on the GS, I believe it could work.

BUT, maybe the GS already has rigidity provisions in place. I'm anxious to find out!

 

Sorry to say I don't think that F-Sport will work with the GS, you would be the first to have it. I believe it's to small. my guy which usually gives me a good prices on everything was telling me around $600 to do all the work the product itself was around $540 so $1140 I wasn't trying to spend that at the time since I was looking for rims.

 

Ah.

Here is a pic of the undercarriage. It looks like this area is already reinforced on the GS.
Still, I am going to measure it.

 

Anyone find out if the worked?

 

Simsled! Where did u get at pic? Any more detailed underbody pictures?

 

In case we're still curious. This is from the 09 3GS AWD model. Pulled it from the following;
https://www.stlouiscarmuseum.com/veh...s350-awd-sedan

Front


Front


Mid


Rear - Mounting Point for Member Brace