replace differential bushings or install brace?

Jlcn54

Private
Mar 2, 2017
40
14
0
Im going with AKG red 75d subframe bushings but Im debating if I should replace the differential bushings as well or just install a diff brace. Reason why Im hesitant to go solid's is I don't want NVH, maybe theres polys out there that dont cause noise? Im around 650whp so want the rear end to me more firm.
 

doublespaces

General of the Army
Oct 18, 2016
8,939
4,144
0
AZ
Ride
2009 E93 335i
I have akg blacks with LSD and no brace, but I can't give much feedback since my car is never running and I have runflats on 19's.