I have an 06 GS300 with staggered 20's (iForged Aero 20x8.5 & 20x10) with 245/35/20 and 275/30 tires. I'm contemplating a trade-in for the new G37 sedan. Will my current wheel/tires fit?

 

you need to post your offsets to receive a definitive answer

 

The wheels were custom ordered through iForged and they never disclosed the offsets. Anyone have experience with swapping staggered iForged wheels from a Lexus GS to an Infiniti G/M?

 

Why not call iforged?

 

Or measure the offsets yourself...

 

Even if you know the offsets, you will not be able to determine if they will fit. We also need to know if you are going with a sport model with bigger brakes. That will be the determining factor.

Bolt pattern and size wise, they will fit. The tires are the right size. The offsets should be pretty close. I really think you would have to try them on to say for sure. If you are going to measure, you need to know the offset, backspacing, etc.

Unfortunately, as I have found out, with this car there is more to fitting wheels than just having the right size and offset. The sport model brakes are huge.... Bigger than the Stoptech kit I had on my G35.

 

I'm not sure if you guys have ever contacted iForged before but they are very secretive about the wheel spec's. In the past, I asked them my wheels would fit an 06 Infiniti M and I think they indicated "yes". However, they did not mention if it would fit a sport model or not. I believe the wheels are aftermarket brake system friendly? Anyways, I did shoot them a technical question through their website. I'll try to give them a buzz later. Please chime in if you can provide any additional info.

 

They gave me the offsets on a set of Aero's I had. You just need to talk to the right person. There is someone there that will be able to tell you if they will fit the G37.

 

I just spoke with "Peter" at iForged and he indicated that he doesn't have a "build sheet" for my wheels. He was able to lookup the record but back when I bought my wheels they weren't using build sheets, which would contain the specifications for offset. He also mentioned that he couldn't find a build sheet with a "standard" configuration for an 06+ Lexus GS to compare against a G37 sport.

 

You also have to consider the center bore, not just offsets and bolt pattern.

I don't have a lot of personal experience with iForged rims. Do you use a separate hub centric ring with your iForged rims at all? If not, then it won't work because the center bore for Lexus GS300's are 60.1 and the center bore for G35's are 66.1. If the rims themselves are already hub centric then you would have to drill out the center bore on the rims to make it work. And that unfortunately is usually a no-no...

 

I bought a set of 20" I-forged rims off the Lexus forum that had come off a GS400. They were a 20x8.5 front and 20x10 rear. Offsets were perfect. I did purchase a new set of center hub rings from I-forged for the G35 66mm hub so the rims would work. I suggest getting a set of aluminum hub rings if possible. The plastic ones are not as good at isolating vibration that larger rims are known for.

Here are pics of the rims on the car they came from and then on my G for comparison. Keep in mind my car is an 07 so the larger brake calipers on the G37 are the only question that you would need to answer. With the front lexus offsets, you could use a small spacer to get the rims outward a little more to clear the larger G37 caliper. I would say an extra 10mm spacer could be used the the rims would sit flush like the rear.