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73 Posts
Discussion Starter · #1 ·
I wanted to try and calculate how much bias might be changed by going to the TT or LS430 calipers. Does anyone know what the piston sizes are in the stock IS300 front and/or rear calipers?

How about the Stoptech calipers? I e-mailed Stoptech, but they wouldn't tell me what they were.

Thanks for any help.
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