GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

ISF Rims on GS 350

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Old 02-14-12, 02:50 PM
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gs350pleas
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Default ISF Rims on GS 350

Hey All, brand new member here. Does anyone know if it is possible to put on ISF rims on the new 4th Gen GS? I have a set on my IS250 but would like to put those on the GS. I plan on getting the car this summer.
Old 02-14-12, 05:02 PM
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rominl
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not sure if anyone has tried, but might be a bit challenging. isf wheels don't fit over the caliper on the gs350 and is350 i believe. 4gs also has pretty big calipers from what i recall
Old 02-14-12, 11:18 PM
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flipside909
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Yeah it should fit with no problem on regular GS 350 models. Like rominl mentioned, the GS 350 F Sport version has larger calipers. IS F wheels wont fit on S 350 front because of the oversized stock caliper. This is also an issue with 3rd Gen GS 350/430/450h/460 models as they had the same front calipers as the IS 350.
Old 02-15-12, 10:39 AM
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Originally Posted by flipside909
Yeah it should fit with no problem on regular GS 350 models. Like rominl mentioned, the GS 350 F Sport version has larger calipers. IS F wheels wont fit on S 350 front because of the oversized stock caliper. This is also an issue with 3rd Gen GS 350/430/450h/460 models as they had the same front calipers as the IS 350.
i thought 4gs350 (regular) has somewhat similar caliper as the 3gs350?
Old 02-15-12, 12:27 PM
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flipside909
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Originally Posted by rominl
i thought 4gs350 (regular) has somewhat similar caliper as the 3gs350?
4th Gen GS 350 front caliper appears to be slimmer on the edges in comparison to 3rd Gen. Hard to say until someone can actually fit the IS F wheel on a new GS.
Old 02-15-12, 12:53 PM
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was wondering the same but for the GS450h.....

Is the brake calliper of the 3gen 450h and 4gen 450h the same?
Old 02-15-12, 01:52 PM
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Originally Posted by flipside909
Yeah it should fit with no problem on regular GS 350 models. Like rominl mentioned, the GS 350 F Sport version has larger calipers. IS F wheels wont fit on GS 350 front because of the oversized stock caliper. This is also an issue with 3rd Gen GS 350/430/450h/460 models as they had the same front calipers as the IS 350.
^^ Actually, from the test fitments I did back in 2008.. A Front IS-F wheel could fit on an IS350 or GS350 Front..
BUT with a small 5mm spacer.. (never tried it myself)

The spacer pushes the inner wheel face away from the caliper surface..

The IS350 Front caliper was slightly shorter and wider compared to the Brembo caliper which is slightly taller and narrow.. But also keep in mind the hubs on an IS-F push things out about .25" which changed rotor and caliper placement.
(The rears fit easily.)

Considering the IS-F front is 19x8 w/ +45 mm and the new OEM GS F-Sport Wheels clear the larger brakes, these just might fit..

Let me dig up the OEM GS350 F-Sport Front Wheel specs .. to be continued..

..OK - so the Front GS350 F-Sport Wheel is also 19x8 w/ +45mm .. So on paper it should be GOOD with no spacer..
All thats left to do is to see if the inner face of the IS-F wheel blade design clears the 2013 GS350 & GS350 F-Sport calipers..

The rear OEM GS350 F-Sport Wheel is 19x9 w/ +60mm offset .


~Joe Z

Last edited by Joe Z; 02-15-12 at 02:28 PM. Reason: Continued...
Old 02-15-12, 02:01 PM
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flipside909
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Originally Posted by Joe Z
^^ Actually, from the test fitments I did back in 2008.. An IS-F wheel could fit on an IS350 or GS350 Front, with a small 5mm spacer.. (never tried it myself)

.. The spacer pushes the inner wheel face away from the caliper surface..

The IS350 caliper was slightly shorter and wider compared to the Brembo caliper which is slightly taller and narrow.. But also keep in mind the hubs on an IS-F push things out about .25" which changed rotor and caliper placement.

Considering the IS-F front is 19x8 w/ +45 mm and the new F-Sport Wheels clear the larger brakes these just might fit..

Let me dig up the F-Sport Front Wheel specs .. to be continued..

~Joe Z
Maybe you can get a chance to mount up your stocks on a 4th Gen you have access to?
Old 02-15-12, 02:17 PM
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I posted the updated info...

Originally Posted by flipside909
Maybe you can get a chance to mount up your stocks on a 4th Gen you have access to?
Maybe I could...

But it would be easier if a GS came to me, instead of hauling 4 IS-F wheels around.. LoL

~ Joe Z
Old 02-15-12, 03:00 PM
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Originally Posted by Joe Z
I posted the updated info...



Maybe I could...

But it would be easier if a GS came to me, instead of hauling 4 IS-F wheels around.. LoL

~ Joe Z
you only need 1 isf wheel to test man
Old 02-15-12, 03:15 PM
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Originally Posted by rominl
you only need 1 isf wheel to test man
Well at least two then.. Since the rear IS-F wheel is 19x9 w/ +55 offset...


~ Joe Z
Old 02-15-12, 06:13 PM
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Originally Posted by Joe Z
Well at least two then.. Since the rear IS-F wheel is 19x9 w/ +55 offset...


~ Joe Z
haha personally i wouldn't even bother with the rear, hard to imagine it being a problem. but that's just me
Old 02-15-12, 11:35 PM
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The wheel design of the new GS Fsport did reminds me of the ISF wheel, but the new GS wheels wont be forged alu and weights more, so for the handling the ISF would be great
Old 02-15-12, 11:47 PM
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Originally Posted by Alantjai
The wheel design of the new GS Fsport did reminds me of the ISF wheel, but the new GS wheels wont be forged alu and weights more, so for the handling the ISF would be great
last i recall isf wheels aren't that light for being forged 19s as well?
Old 02-16-12, 04:03 AM
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But they are lighter than other Lexus oem wheels

I know that there are wheels that are even lighter


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