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IS250 VS IS350 offsets

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Old Jan 28, 2008 | 01:32 PM
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Default IS250 VS IS350 offsets

Will some wheels fits into a IS250 and NOT fit into IS350?? Is the offsets different for both car? As the IS350 has bigger brakes and rotors.
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Old Jan 28, 2008 | 01:33 PM
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Yes, youll need diff offsets b/c the 350 has bigger brakes
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Old Jan 28, 2008 | 01:48 PM
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how much of a difference?
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Old Jan 28, 2008 | 02:10 PM
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Its also the face of the rims, high disk vs low disk, the 350 requires high disk rims due to the size of the brakes in the front only.
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Old Jan 28, 2008 | 02:25 PM
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The offests remain the same.

Like llamaboiz says, the front wheel disc type has to be a HIGH DISK for an IS350 to bolt right on. A MID DISC can be used on an IS350 to gain more lip size, but a spacer needs to be run behind the wheel, and then the offset adjusted accordingly, which will usually removes the lip size anyway.


The 250/350 both use the same LOW DISC in the rear.


It appears the popular offset types for ISX50's are (based on 8.5 front, 9.5 rear):

Mild: +42 to +45 front and rear

More agressive: +38 front, +40 rear

"Matching" more agressive: +36 front and rear

Agressive with fender liner work : +30 front, +35 rear

Very agressive with fender work: +28 front, +32 rear

VIP style with major fender work: +21 front, +25/27 rear


Just my $.02
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Old Jan 28, 2008 | 03:19 PM
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Originally Posted by Lama
VIP style with major fender work: +21 front, +25/27 rear

Gotta love the VIP look!!!
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Old Jan 28, 2008 | 03:40 PM
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So just for the fronts right? So would spacers just solve the problem?? Also if the front wheel is 8.5 width...would having spacers be too much off over the fender?? (sticks out from the fender) Which then rubs?
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Old Jan 28, 2008 | 05:33 PM
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any1?? i got a great deal on this wheels...thats why..but they say its going to fit on the IS250 but not the IS350....will spacers solve the problem??
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Old Jan 28, 2008 | 05:40 PM
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OHH... one other thing comes into play when decided to roll fenders, tire sizes.
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Old Jan 28, 2008 | 05:45 PM
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well the wheel size is 19x8.5 and offset is unknown but it wont fit on the Is350 but only on the is250. So what should i do to make it fit? Tire size? Spacers 10mm 15mm 20mm?? Will it be TOO flushed to the fender tho?? making it stick out more than the rear...19X9.5
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Old Jan 28, 2008 | 05:49 PM
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I think you should put down everything you know about the rims first, brand/style/go measure the offset with a ruler/everything you can find out about the particular rims, high/med/low disk... everything you can, call the guy who sold it to you... the more info you post the better the answer you'll get.
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Old Jan 28, 2008 | 06:00 PM
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thanks llamaboiz...well i cant really contact the seller now. But he only say this will only clear stock IS250 brakes. Aftermarket BBK will definitely not fit in, and he actually tested on an IS350 and he says it does not clear the 4 pot brakes IS350 has.
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Old Jan 30, 2008 | 02:52 PM
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Okay so the front is the one that does not fit...

the size is 19x8.5 offset 35

That he put on his Is250 and said IS350 rotors and brakes are too big for that...anything i should know?

will that certainly not fit?
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Old Jan 30, 2008 | 03:12 PM
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will a low disk even fit the IS250 on the front? their brakes are not actually that small...
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Old Jan 30, 2008 | 03:54 PM
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nicely put Lama, i think this info should be added to the FAQ
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