What are the best strut bars to get for a 97 M3/4. I'm wanting a solid type. I really liked the JTD ones I saw but I emailed and they don't make them anymore. Also, does anyone know what kind of difference swaybarbarians, X-brace, and front and rear strut bars would help the handling of a stock suspension M3? I'm wanting to hold off on the springs and shocks until I can afford the ground control setup. TIA