Chassis stiffening/SFC

[keltymd]

I am coming from the old world of SN95s and the first thing you always needed to do what SFCs. I know these S550s are a better chassis and much stiffer but is there any must do as far as chassis stiffening on these for Autocross or HSDE?

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[BMR Tech]

The best "chassis" stiffening for this car, is addressing the front and rear subframes and their performance within the chassis.

The best real chassis stiffening you will find for what you want, is going to be cage / roll bars.