Been searching on this topic with no luck for a couple of days now. I am interested in upgrading my calipers to the GS350's.

Is it possible?

 

Yes it is very possible, but you will need gs350 calipers, rotors and brakes.

 

Depending on what rims you are running, you may run into clearance issues as well.

 

Don't forget the dust shield too or you can cut the old one to fit the 350's rotor

 

Def works. I got a GS 06 awd 300...cut the old dust shield, got 350 AWD rotors, and 350 calipers.. painted, decaled, and clear coatted..voila, magic (like that terrible song lmao)

 

They definitely work, I put them on my 2006 GS300 AWD.
Both front and rear brake kit, got lucky with rock auto and got the set.

 

Lucky is right, I've been waiting for months !!

 

Do you have the link for the set? Looking to do the same upgrade myself

 

I have an extra set of the GS350 fronts if you need. Rock auto is taking forever.
I just hit the local junk yard recently.

 

I don't even see the kit on Rock auto anymore smh.

Every other kit is like a bagillion dollars. Nah!!!

 

You can buy a used set of calipers from your local junkyard. Just search www.car-parts.com this will search the parts that you need and closes to you. Maybe you can even work a deal to buy the whole hub with all the pieces needed, instead of cutting parts.

 

That's a good idea as well. Get shields and everything, one stop shop.