If the car is a 4th gen you really dont have to worry about the chassis twisting unless your running big hp numbers. But that doesn't mean dont do them! I would suggest getting subframes, relocation brackets with LCA's and a matched shocks & spring package.
On my 95' Im running Spohn Tubular Subframes, Spohn Tubular LCA's, Spohn Relocation Brackets, Bilstien HD shocks & Eibach Pro-Kit. The ride isn't horrible at all. My old 3rd gen handled worse and drove worse with a stock suspension then my 95'. Its defenitly tollerable.
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