oil catch filter rover 45

Hi guys I have a rover 45 2003 2.0 itd connisuer 2 questions is it worth installing a oil catch filter? And how do I do it if it is ? Currently have the egr blanked decat increased boost psi remap and running on a vedge oil and diesel mix with castol magnatec 10w 40 semi synthetic full service this month new fuel filter Inc around 12500 miles

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