SFC's necessary?

I am trying to decide which suspension parts i need to compliment my current set-up - on a budjet unfortunately.

Are you guys finding SFC's are necessary on our cars? Is there that much flex in our bodies. I don't have t-tops & i don't autocross.



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1993 red M6 Z28; custom control arms; bushings; strut bar; Eibach Pro-kit;17" rims & 275 tires; Mac exhaust; K&N cold air; airfoil; TB bypass; 3.73 gears; KVR pads & rotors; -1 camber alignment

If you dont AutoX and you have a solid roof car that helps, but SFCs are a great budget addon IMO still. I'm using BMR Tubular, probably any tubular variety is fine and decent price, no ground clearance issues.

I think there is a budget brand out there that uses thin wall tubing compared to others, in case it matters.