Hi, I am confused as to which calipers I can buy because a lot of places are listing the calipers are the same part # from 2IS as 3IS but I've read in previous threads that there are small differences between the 2? Can someone confirm if they're the same? Something that also furthers my confusion is that the part numbers are the same but sellers are also selling brake rotors & pads for 2IS only but not marketed for 3IS. I'd assume if the brake calipers are same part # and basically the same, why are the rotors / pads not being listed as compatible for 2006->2020?

Also does AWD vs RWD matter?

 

better get the front set for GS350 F SPORT (2013+)

Those 355mm ventilated discs are much lighter... maybe they become the same on 2021/2022 IS, I don't know...