Offset vs brake caliper clearance questions for aggressive wheel fitment

[Led_Foot_Caveman]

Hey all im knew here, i plan on running xxr 521 on my 24'gt they are 20x10.5 +30 offset square with a 285 30 20, i know this is aggressive but have seen it on countless 5g and 6g mustangs, on the 6g i hear that I need a 3mm spacer on a base model and an 8mm for the brembos for clearance, i have a base model '24 but I thought i read somewhere that they put bigger brakes on the front of the '24, i don't mind running a 1/4" spacer on the front but the wheels are already aggressive fitment, plus I don't want to extend wheel studs, has anyone run into brake clearance issues, I am sure this has been beaten to death as a subject so sorry in advance, oh and I will be putting the eibach pro kit on the car for lowering

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[Led_Foot_Caveman]

 

[Led_Foot_Caveman]

This is not my car just an example of the wheel on a 6g

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