Lowering on coilovers with 17'' superturismo's

[gtistevo]

I have a cup 172 with dodgy shocks and springs and i just want coilovers for sturdyness again... What ones should i go for?
Also i have 17'' oz superturismo's that i think could be a problem... They look fantastic on the car but there a bit big for the height i want to go... Where could i find some1 wantin to swap me for standard cup speedlines...
Here is a picture of it just now IMG_0800.JPG

 

[ben lee]

got 17s with a 60mm drop withe no clearence problems on my rsi