From a picture earlier in this thread, this is where mine would hit and vibrate. I'm not sure how changing brackets would impact that. Does it make the exhaust hang lower?
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'21 M2C, HS, MT, EP - AA EL + Axle Back, FMHE, "Enabled"
Past - '09 335i Sport, '11 M3 ZCP Sedan, '11 550i M-Sport
Also - '94 F-150 Lightning (mild, mid-mount turbo), '95 F-150 Lightning (big motor, big turbo), '15 Chevy SS Sedan (supercharged)