Probably would be best to do the complete conversion if you're going to do the swap. I think you'll need the caliper brackets from the Brembo's to make sure everything goes together right. I'm fairly certain that the axles are the same on the JDM car and the USDM car

 

You will need the whole swap. That includes axles, lowers lca, spindles, calipers, rotors, and sway bar. Because the lower control arm in the ITR is aluminum and the track width I wider so it pushes the spindles further out, which then makes the US axle too short and need the longer axles of the ITR. Also since the sway bar mounts are further apart the US sway won’t fit. If you run ITR sway you will run into clearance issues with the exhaust since both use different manifolds. You are better off getting the TL-S calipers with the bracket then run s2k rotors. It all should fit in 17 inch wheels since type r uses 17x7.5 I believe

 

OK,I get it，tks！

 

I am running ITR brembos and only thing I changed was the front rotors to s2k rotors. I’m running 18x8.5 +35 and had to run a 5mm spacer. So idk about having to change the axles and spindles...