I agree with TonyC/Scoobymike.
Although I have the full Drummond motorsport shocks, competition springs and pillowball mounts etc., I did this only after I had reached the limits of the stock suspension - and after several thousand miles of working out how exactly I wanted it to behave. Even then, I had to go through a few iterations before it was right. It does depend on what you use the car for. I use mine solely for track driving on circuits, so tyres, brakes and suspension are far more important than power (which is why I am leaving the bulk of the power mods till last). However, I would suspect that a standard EVO would out-handle my car on the public roads - as it is most definitely too stiff for normal road use, even with the adjustable dampers. Equally, a standard EVO would dissolve its front tyres trying to keep with my car on a track!
Finally, suspension|PLS|power is no substitute for skill! I have been outhandled, outbraked, and outdriven by a guy in a standard EVO - whilst mine was all modded up.
Mind you that was my first time out! I have had lots of lessons since then.....
One of the funniest things I ever saw was a Peugot 309, stripped and lightened, that destroyed just about everything (EVOS, Scoobys, TVRs, Ferraris etc.) at Castle Combe - simply because this guy had a properly setup car and he was a v. good driver