Yaff

Please forgive me for going the lazy way.

I'm looking for advices for sportifying the 2004 430 ride

Here's the goal: Firming up the ride with little less rolls and weight swings in cornering.
I have not intention to lower the car.

I`ve read about someone who went with the 430 Sport components in the rear.
Is it possible to go 430 sport front and rear?

All suggestions are welcome. Swaybars, coilover, bushings... Name it, I`m listening :-)
I even hope for a full kit if such thing exists

Also, I don't know if it comes from the calipers (sounds like it) but the car has developed a metal on metal noise when I hit little bumps. Sounds like a relatively light metal part hitting another. Does not make it on bigger or rounder bumps. Expension joints on bridges are the best at exposing the bling bling noise. Might be some bushings that are starting to fail... Any idea how to isolate the problem? I brought the car to 1 dealer and couples of independent garage and they couldn't find it. But I'm not sure they looked really hard.

EDIT: currently looking at:
BC Racing plus cloilovers
http://circuitmotorsports.rpmware.co.../i-532678.aspx