Going to run the GC weightjacks with KYB shocks and struts, QA1 panhard bar, QA1 LCAs, Spohn LCA relocation brackets, Spohn torque arm, & weld in subframe connectors. Car is going to see more street than track anything I need to know about spring rates for street use? Should I just get Eibach Sportlines with all other aftermarket suspension mods? I've read about GC weight jacks and how it's a autoX application I just want adjustability.

 

I have CG fr/Rr.I forget the spring rates, but they are not much higher than stock ratings.Something like 600 fr & 170" lbs Rr, both eibach.CG was recommending higher rates over 700 fr.Been there before though.Other susp mods in sig.

 

I'm running GC F: 850# R: 225# , but I'm a "MAX effort" street / track ride.

Rethink your shock choice !!!

 

800fronts and 150 or 175 rear work well but yes, seriously look into better shocks