IS300 vs IS200 Brakes?

[MJG]

I'll be needing to change my brakes soon as I get a wobble in the steering wheel when braking at speed, must be warped front discs.

Was wondering if the IS300 front calipers take a larger disc than the is200? 

It would make sense for a 3L to have larger brakes than the 2L but on eBay I see discs for is200/is300 on the one size 296mm for both cars?

I'll have a spare set of front brakes off my Subaru Legacy soon which use 316mm discs, I know I'll need adaptor brackets made to fit them. Although I'm not sure if I will need is200 brake lines or the same ones on the subaru for their calipers? 

[dave1]

 

The above thread may help. It would appear that they are the same.

[MJG]

Thanks for the link Dave :)

My car is an X reg 2000 model, so does that mean mine are smaller as its pre 2001 according to the poster of that thread.

Anyone know how I can double check if its true the pre2001 is200 discs are smaller than is300?

Thanks