I think you are waisting your money on brand name strut and tie bars. Suspension bushings will stiffen up the suspension way moore than any tie bar braces.
What are you trying to do with the car? I mean are you trying to build a car that will be competative or a more fun car to drive when you come out and play.
If you are building for a class, what have you done to the car?
Michael
91 Civic Si STS