I've been running the megane brembo caliper set up for about the last 4-5 years with 320mm discs but that's with 18" copy pegs.
I think you will struggle to get them behind titans. I had to fit 10mm wheel spacers to get them to clear volans that's why I went for pegs.
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1996 850 AWD M4.4 ECU with COP`s, K24 turbo, 3.25" MAF,
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